СПОСОБ И УСТРОЙСТВО ДЛЯ ОПРЕДЕЛЕНИЯ ОСТРОТЫ ЗРЕНИЯ ПОЛЬЗОВАТЕЛЯ

Изобретение относится к способу определения остроты зрения. В контексте индивидуального теста, являющегося частью серии из последовательно проводимых индивидуальных тестов, на экране дисплея (1) электронного устройства (2) или в виртуальном трехмерном представлении пользователю выводятся два пространственно разделенных внешних знака (3, 4) и позиционируемый знак (5), расположенный между ними, но не на соединяющей их прямой линии (6). При этом пользователю предлагается, активируя электронное устройство (2), перемещать позиционируемый знак (5) по дисплею (1) перпендикулярно прямой линии (6), соединяющей внешние знаки (3, 4), до тех пор, пока позиционируемый знак (5) не будет представляться пользователю находящимся на соединяющей прямой линии (6). Когда манипулирование позиционируемым знаком (5) будет завершено, электронное устройство (2) зарегистрирует остаточное расстояние (7) между знаком (5) и соединяющей прямой линией (6). Проводятся по меньшей мере два или три индивидуальных теста, в ...

ЭЛЕКТРОННЫЕ МАРКИРОВКА/СОВМЕЩЕНИЕ ГЛАЗА

Группа изобретений относится к медицине. Устройство для применения в течение рефракционной хирургической операции катаракты содержит: реально-временной интраоперационный датчик волнового фронта для непрерывного замера первого набора волновых фронтов, распространяющихся обратно из глаза пациента, в течение первого интраоперационного интервала времени, причем в течение первого интраоперационного интервала времени возникают временные хирургически-вызванные факторы, которые вызывают временные изменения предоперационно измеренной составляющей астигматизма глаза пациента, причем первый набор волновых фронтов замеряется после удаления хрусталика глаза пациента, приводящего глаз пациента в афакическое состояние, и причем реально-временной интраоперационный датчик волнового фронта сконфигурирован с возможностью выдачи данных измерений волнового фронта, характеризующих первый набор волновых фронтов; и процессор данных, связанный с реально-временным интраоперационным датчиком волнового фронта для ...

СИСТЕМА И СПОСОБ БЫСТРОГО ИЗМЕРЕНИЯ ФУНКЦИИ ВИЗУАЛЬНОЙ КОНТРАСТНОЙ ЧУВСТВИТЕЛЬНОСТИ

Группа изобретений относится к области медицины, а именно к офтальмологии. Для проверки функции контрастной чувствительности глаза используют компьютеризированную систему, включающую компьютер, монитор высокого разрешения и интерфейс пациента. Функцию контрастной чувствительности проверяют с помощью серии проверочных таблиц с наклонными решетками методом вынужденного выбора, которые предлагают пациенту. Дополнительно используют синхронизированную звуковую подсказку при демонстрации наклонных решеток. Регистрируют правильность и неправильность ответа. Анализируют ответы с использованием статистических способов психофизики. Функцию контрастной чувствительности сохраняют и наносят на график для получения количественного результата. Группа изобретений ускоряет процесс проверки контрастной чувствительности глаза и повышает точность измерения функции контрастной чувствительности глаза. 3 н. и 17 з.п. ф-лы, 11 ил.

ВЫРАВНИВАНИЕ ИНТРАОКУЛЯРНОЙ ЛИНЗЫ

... 1. Способ создания указателя для радиального выравнивания в отношении глаза, содержащий:сбор предоперационных данных по выравниванию в отношении зрачка глаза, который не дилатирован;определение местоположения центра зрачка глаза, когда он дилатирован; а такжеотображение данных по выравниванию на изображении дилатированного глаза по отношению к центру зрачка.2. Способ по п.1, в котором отображение данных выравнивания содержит отображение радиальной сетки.3. Способ по п.1, в котором отображение данных выравнивания содержит отображение, по меньшей мере, одного меридиана в отношении глаза.4. Способ по п.3, дополнительно содержащий выравнивание протрактора по отношению к меридиану.5. Способ по п.1, в котором отображение данных выравнивания дополнительно содержит отображение радиальной сетки.6. Способ по п.1, в котором определение местоположения центра зрачка содержит перемещение координатно-указательного устройства в ручном режиме для определения центральной точки глаза.7. Способ по п.1, в котором ...

УСТРОЙСТВА И СПОСОБЫ ДЛЯ ТЕСТИРОВАНИЯ ЗРИТЕЛЬНОЙ ФУНКЦИИ И ФУНКЦИОНАЛЬНОГО ЗРЕНИЯ ПРИ ВАРЬИРУЮЩИХСЯ УРОВНЯХ ЯРКОСТИ

Vision exercising apparatus

Apparatus and method for inducing polarization perception in an observer

Image processing apparatus and image processing method

To provide pathological support for users to effectively perform follow up on diseases, using polarization information obtained from polarization-sensitive tomographic images. An image processing apparatus includes a positioning unit (195) configured to position multiple polarization-sensitive tomographic images corresponding to multiple tomographic luminance images, based on the plurality of tomographic luminance images obtained by photographing an object at different times; and a comparing unit (196) configured to compare the plurality of polarization-sensitive tomographic images which are positioned.

Opthalmologic observation apparatus

DEVICE FOR THE REPRESENTATION OF AN AREA OF OPERATIONS WITH LASER OPERATIONS

Apparatus for determining the pupil center

Bei einer Vorrichtung (102) zum Bestimmen der Pupillenmitte (406) eines Auges (208) einer Person (104) in einem Bild umfassend eine berührungsempfindliche Anzeigeeinrichtung (112) zum Anzeigen des Bildes mit dem Auge (208) der Person (104), eine Gestenerkennungseinrichtung zum Erkennen einer ersten vorbestimmten Geste (502), die beim Berühren der berührungsempfindlichen Anzeigeeinrichtung (112) durch einen Benutzer (108) erfolgt, eine Kontraständerungseinrichtung zum Ändern des Kontrasts des von der berührungsempfindlichen Anzeigeeinrichtung (112) angezeigten Bildes in Folge einer von der Gestenerkennungseinrichtung als erste vorbestimmte Geste (502) erkannten Berührung durch einen Benutzer (108), ist die Gestenerkennungseinrichtung eingerichtet, als erste vorbestimmte Geste eine Bewegung zweier in einem Abstand (D) zueinander die berührungsempfindliche Anzeigeeinrichtung (112) berührend eine orbitale Drehbewegung (502) um ein gemeinsames Drehzentrum ausführender Finger (504, 506) zu erkennen ...

METHOD AND SYSTEM FOR DETERMINING THE REFRACTIVE PROPERTIES OF AN EYE OF A CHILD

Abstract The current invention is directed to a system (30) for determining the refractive properties of an eye (10), the system (30) comprising a wavefront measurement device (32) for measuring the refractive properties of the eye (10), characterized in that the system (30) is configured to have at least one measurement mode assigned to children, wherein the system (30) has an input device (34) configured to switch the system (30) into one of the at least one measurement mode assigned to children, and wherein the system (30) is further configured to alter at least one of a group consisting of a default pupillary distance (54), a default cornea vertex distance (52), a default position (33) of the wavefront meas urement device (32), a default position and/or direction of a measurement ray (58) of the wavefront measurement device (32), a default position (47) of a forehead and chin rest assembly (40) of the system (30) and a fixation target (38) when the system (30) is switched into the one ...

Method and system to create custom products

Systems and methods for creating fully custom products from scratch without exclusive use of off-the-shelf or pre-specified component A system for creating custom products includes an image capture device for capturing image data and/or measurement data of a user. A computer is communicatively coupled with the image capture device and configured to construct an anatomic model of the user base on the captured image data and/or measurement data. The computer provides a configurable product model and enables preview and automatic or user-guided customization of the product model A display is communicatively coupled with the computer and displays the custom product model superimposed on the anatomic model or image data of the user.

Monitoring neurological functional status

A device for measuring eye movement in a human subject comprises a housing, at least one stimulator mounted to the housing, and a sensor. The at least one stimulator is configured to provide stimulus to one or both eyes of the subject. The sensor is configured to collect information related to movement of one or both eyes of the subject. The device also includes a user interface that is configured to control the at least one stimulator and display information collected by the camera.

Method and system to create custom products

A computer-implemented method for generating instructions for manufacturing an individual-specific eyewear product, using a computer system, the method comprising: generating a configurable parametric model of an individual-specific eyewear product for an individual, by modifying one or more geometric parameters of the configurable parametric model based on one or more geometric features obtained from analysis of the individual's anatomy; receiving a request for further modification to the one or more of the geometric parameters of the configurable parametric model; generating an updated parametric model of the individual-specific eyewear product for the individual, based on the received request for further modification to the one or more geometric parameters of the configurable parametric model; and generating an electronic file comprising instructions for manufacturing a physical embodiment of the individual-specific eyewear product according to the updated parametric model. H:\mka\Interwoven ...

Clustered volley method and apparatus

Systems and methods are disclosed for assessing the function of parts of one or more sensory fields of a subject. Pupillary responses to at least two clustered ensembles of stimuli presented to predetermined portions of the sensory fields to be tested are measured. Each cluster comprises individual stimuli presented at locations across the sensory field, where the locations are defined on appropriate axes for the tested sensory fields. The method comprises: presenting statistically independent sequences of selected individual stimuli from the two or more clustered stimulus ensembles to a sensory field of a subject, thereby evoking pupillary responses in at least one pupil of the subject; detecting responses of the pupil or pupils evoked by the stimuli using at least one sensor; and processing the detected responses to relate the detected response to the sensory function of each component part of the sensory field. The sensory fields may be, but are not limited to, the visual fields of the ...

Video game to monitor retinal diseases

Systems and methods for providing a video game to map macular visual acuity comprising a multiple choice test where the fixation point is ensured by brief simultaneous presentation of both a central and pericentral targets. The game may be implemented on a hardware platform including a video display, a user input device, and a video camera. The camera is used to monitor ambient light level and the distance between the device and the eyes of the test subject. The game serves as a macular acuity perimeter that produces a map of the acuity of an eye that may be compared with normative data. The type of acuity tested is preferably Vernier acuity, but resolution acuity can also be tested. The test results are transmitted to a health care professional by telecommunications means to facilitate the diagnosis or monitoring of age-related macular degeneration or other relevant eye diseases.

Systems and methods for displaying objects on a screen at a desired visual angle

According to one or more embodiments, the processes and systems disclosed allow for displaying objects on a screen at a desired visual angle, and more particularly, in one aspect, to systems and methods for displaying optotypes during an eye examination.

Resolution enhancement of OCT images during vitreoretinal surgery

Resolution enhancement of OCT images during ophthalmic surgery may be performed with an OCT scanning controller that interfaces to an OCT scanner used with a surgical microscope. Real-time OCT images may be acquired by the OCT scanner, while previously acquired high resolution OCT images are accessed by the OCT scanning controller. The high resolution OCT images may be morphed based on the real-time OCT images to match a deformation of the eye. The morphed high resolution OCT images may be displayed during surgery.

Through focus retinal image capturing

An apparatus for producing a non-mydriatic fundus image is disclosed. The apparatus can include a processor and memory, as well as an illumination component and a camera with a variable focus lens. The apparatus can be configured to adjust the focus of the lens to a plurality of different diopter ranges and capture at least one image at each of the plurality of different diopter ranges. A method for capturing a non-mydriatic image of a fundus is also disclosed. The method can include setting a depth of field, dividing the depth of field into a plurality of zones, adjusting a variable focus lens of a camera to focus on each of the plurality of zones, and capturing at least one image at each of the plurality of zones.

Through focus retinal image capturing

An apparatus for producing a non-mydriatic fundus image is disclosed. The apparatus can include a processor and memory, as well as an illumination component and a camera with a variable focus lens. The apparatus can be configured to adjust the focus of the lens to a plurality of different diopter ranges and capture at least one image at each of the plurality of different diopter ranges. A method for capturing a non-mydriatic image of a fundus is also disclosed. The method can include setting a depth of field, dividing the depth of field into a plurality of zones, adjusting a variable focus lens of a camera to focus on each of the plurality of zones, and capturing at least one image at each of the plurality of zones.

ENDOSCOPE IMAGE PROCESSING APPARATUS

MULTI-TOUCH DISPLAY AND INPUT FOR VISION TESTING AND TRAINING

The present invention provides systems and methods for receiving an input to a sensory test or training activity by way of a touch-screen device. The touch-screen device receives instructions by way of a wireless communication protocol from a sensory testing and training device. The instructions may be comprised of a command to display a graphical element on the touch-screen device. As a result, the touch-screen device displays the graphical element on a display surface of the touch-screen device. Further, an input may be received from a subject in the form of a physical contact between the subject and the display surface of the touch-screen device. The input may be in response to a sensory test or a sensory training activity. Additionally, the touch- screen device communicates the input to the sensory training device utilizing a wireless communication protocol. In an additional embodiment, the touch-screen device provides feedback to a user.

DIGITAL DISPLAY DEVICE COMPRISING A COMPLEMENTARY LIGHT FIELD DISPLAY OR DISPLAY PORTION, AND VISION CORRECTION SYSTEM AND METHOD USING SAME

Described are various embodiments of a digital display device to render an image for viewing by a viewer having reduced visual acuity, the device comprising: a digital display medium for rendering the image based on pixel data related thereto; a complementary light field display portion; and a hardware processor operable on said pixel data for a selected portion of the image to be rendered via said complementary light field display portion so to produce vision-corrected pixel data corresponding thereto to at least partially address the viewer's reduced visual acuity when viewing said selected portion as rendered in accordance with said vision-corrected pixel data by said complementary light field display portion.

METHOD, SYSTEM AND APPARATUS FOR DIAGNOSTIC ASSESSMENT AND SCREENING OF BINOCULAR DYSFUNCTIONS

Exemplary embodiments of the present disclosure relate to systems, methods, and apparatus to objectively assess binocular dysfunction for screening, diagnoses, and evaluation of vision/oculomotor function before, during, and after various forms of therapeutic interventions. Systems and methods of the present disclosure diagnose and assess binocular dysfunction objectively and automatically, can render a visual stimulus on one or more displays, and can control accommodative and proximal vergence stimulation of a user's eyes.

OCULAR SURFACE INTERFEROMETRY (OSI) DEVICES, SYSTEMS, AND METHODS FOR IMAGING, PROCESSING, AND/OR DISPLAYING AN OCULAR TEAR FILM AND/OR MEASURING OCULAR TEAR FILM LAYER THICKNESS(ES)

RESOLUTION ENHANCEMENT OF OCT IMAGES DURING VITREORETINAL SURGERY

Resolution enhancement of OCT images during ophthalmic surgery may be performed with an OCT scanning controller that interfaces to an OCT scanner used with a surgical microscope. Real-time OCT images may be acquired by the OCT scanner, while previously acquired high resolution OCT images are accessed by the OCT scanning controller. The high resolution OCT images may be morphed based on the real-time OCT images to match a deformation of the eye. The morphed high resolution OCT images may be displayed during surgery.

OPTOMETRY DEVICE

An optometry device for testing an individual's eye (E) comprises an imaging module (10) adapted to produce a first image at a variable distance for the individual's eye (E), a beam splitter (26) arranged to combine the first image and a second image for the individual's eye (E), and a screen (22) facing the beam splitter (26). A mirror (24) is arranged in combination with the screen (22) to produce the second image to be visible by the individual's eye via the beam splitter (26).

VISION TESTING SYSTEM AND METHOD

A method for testing a person's vision is disclosed. The method includes providing, for display to the person, one or more sequences of test images, each test image including one or more test symbols. For each test image, a target symbol is identified to the person. The person then views each test image in the sequence and activates a control in response to recognising a test symbol that replicates the shape of the target symbol. At the completion of the sequence, a parameter value associated with the activations is processed and correlated with a vision metric. A system for testing a person's vision is also disclosed.

METHODS AND APPARATUS TO IDENTIFY EYE COVERINGS FOR VISION

Methods and apparatus can fit coverings to treat eyes. The covering can be identified so as to provide improved flow of tear liquid under the covering. The covering can be identified based on an inner corneal curvature and an outer corneal curvature and one or more of a limbus sag height or a conjunctival sag height. The covering may form a chamber when placed on the eye to pump tear liquid under at least a portion of the covering. The covering may comprise an outer portion with rigidity to resist movement on the cornea and an inner portion to contact the cornea and provide an environment for epithelial regeneration. The covering may comprise a material having high oxygen permeability, for example silicone, with a wettable coating disposed on at least an upper surface of the coating.

METHOD AND APPARATUS FOR THE DETECTION OF IMPAIRED DARK ADAPTATION

The present method describes a new method for the measurement of dark adaptation. The dark adaptation status of subjects may then be used to identify those subjects who are at risk of developing and/or who are currently suffering from a variety of disease states having their clinical manifestations in impaired dark adaptation. The disease states include, but are not limited to, age related macular degeneration, vitamin A deficiency, Sorsby's Fundus Dystrophy, late autosomal dominant retinal degeneration, retinal impairment related to diabetes and diabetic retinopathy. An apparatus for administering the test method described is also provided.

METHOD AND APPARATUS FOR THE DETECTION OF IMPAIRED DARK ADAPTATION

The present method describes a new method for the measurement of dark adaptation. The dark adaptation status of subjects may then be used to identify those subjects who are at risk of developing and/or who are currently suffering from a variety of disease states having their clinical manifestations in impaired dark adaptation. The disease states include, but are not limited to, age related macular degeneration, vitamin A deficiency, Sorsby's Fundus Dystrophy, late autosomal dominant retinal degeneration, retinal impairment related to diabetes and diabetic retinopathy. An apparatus for administering the test method described is also provided.

CLUSTERED VOLLEY METHOD AND APPARATUS

Systems and methods are disclosed for assessing the function of parts of one or more sensory fields of a subject. Pupillary responses to at least two clustered ensembles of stimuli presented to predetermined portions of the sensory fields to be tested are measured. Each cluster comprises individual stimuli presented at locations across the sensory field, where the locations are defined on appropriate axes for the tested sensory fields. The method comprises: presenting statistically independent sequences of selected individual stimuli from the two or more clustered stimulus ensembles to a sensory field of a subject, thereby evoking pupillary responses in at least one pupil of the subject; detecting responses of the pupil or pupils evoked by the stimuli using at least one sensor; and processing the detected responses to relate the detected response to the sensory function of each component part of the sensory field. The sensory fields may be, but are not limited to, the visual fields of the ...

AN OPERATING SYSTEM WITH A OCT DEVICE

Operating system with an OCT device.

Die Erfindung betrifft ein Operationssystem (10) mit einer OCT-Einrichtung (20) für das Abtasten eines in einem Objektbereich (18) angeordneten Objektbereichvolumens (22) mit einem OCT-Abtaststrahl (21). Das Operationssystem enthält eine Einrichtung (58) für das Einstellen der Position (P) des mit dem OCT-Abtaststrahl (21) in dem Objektbereich (18) abgetasteten Objektbereichvolumens (22). Erfindungsgemäss umfasst das Operationssystem (10) ein Operationsinstrument (24), das einen in dem Objektbereich (18) anordenbaren, mit der OCT-Einrichtung (20) in dem Objektbereichvolumen (22) lokalisierbaren Wirkabschnitt (26) hat. In dem Operationssystem (10) gibt es eine mit der OCT-Einrichtung (20) verbundene Rechnereinheit (60) mit einem Computerprogramm für das Ermitteln der Position des Wirkabschnitts (26, 26´) in dem abgetasteten Objektbereichvolumen (22) durch Verarbeiten von mit der OCT-Einrichtung (20) durch Abtasten des Objektbereichvolumens (22) gewonnener Abtastinformation. Weiterhin betrifft ...

METHOD OF OPTIMIZATION AND/OR PREPARING THE SPECTACLE LENSES

Optical measurement device for eyeball, optical measurement method for eyeball, and method for receiving light illumination to eyeball

A WIRELESS IMAGING APPARATUS AND RELATED METHODS

시각적 보상 장치를 맞춤화하기 위한 적어도 하나의 변수 값을 결정하기 위한 방법

... 본 발명은 시각적 보상 장치용 커스터마이징 변수의 적어도 하나의 값을 결정하기 위한 방법에 관한 것이다. 본 발명에 따라, 이 측정 방법은: a) 전자 단말기(2)를 갖춘 사용자(1)가 적어도 하나의 이미지 또는 비디오 시퀀스를 획득하는 단계; b) 원격 지원 센터(22)로 상기 적어도 하나의 이미지를 통신하는 단계; c) 획득된 이미지 또는 비디오 시퀀스를 교정하거나입증하기 위하여 상기 적어도 하나의 이미지로부터 명령을 추론하기 위해 상기 적어도 하나의 이미지를 처리하는 단계; d) 원격 지원 센터(22)로부터 사용자(1)의 단말기(2)로 상기 교정 또는 입증 명령을 원격통신하는 단계; e) 단말기를 이용하여 청각적 또는 시각적 메시지를 표시또는 발신하는 단계; f) 입증 이미지 또는 비디오 시퀀스가 얻어질 때까지 전술한 단계를 반복하는 단계; g) 상기 적어도 하나의 커스터마이징 변수의 값을 결정하는 단계를 포함한다.

VERGENCE RECOVERY CONVALESCENCE USING DYNAMIC VERGENCE TESTING PLATFORM INCLUDING 3D HEAD MOUNTED DISPLAY SYSTEM WITH INTEGRATED EYE TRACKING TECHNOLOGY

An objective testing of vergence dysfunction comprising the steps of: providing a head mounted goggle based stimulus generating eye tracking unit to the subject; presenting visual stimulus to the subject, wherein the visual stimulus is in the head mounted goggle based system and forms the optical target stimulus for at least one vergence test; obtaining objective physiologic response of the subject from the head mounted goggle unit based upon each of the visual stimulus presented to the subject in each test; and using the objective physiologic responses to diagnose the presence of vergence dysfunction. On objective portable head mounted goggle based stimulus generating eye tracking unit for vergence testing is discloses as is a method of method of vergence recovery convalescence.

OPHTHALMIC OPTICAL SYSTEM, OPHTHALMIC OBJECTIVE LENS, AND OPHTHALMIC DEVICE

The ophthalmic optical system is configured to apply an angular scanning light ray to an eye. M=|ωout/ωin| is defined, where ωin represents an angle between an incident light ray to the ophthalmic optical system and an optical axis of the ophthalmic optical system, and ωout represents an angle between an exiting light ray exiting from the ophthalmic optical system toward the eye and the optical axis. The ophthalmic optical system satisfies a conditional expression Mpar Подробнее

SPECTACLE WEARING PARAMETER MEASUREMENT DEVICE, SPECTALE WEARING PARAMETER MEASUREMENT PROGRAM, AND POSITION SPECIFYING METHOD

A spectacle wearing parameter measurement device used in measurement of a spectacle wearing parameter of a subject who is to wear a spectacle frame, the spectacle wearing parameter measurement device includes: an information processing unit that acquires each of a first image as a face image of the subject in a spectacle-frame wearing state and a second image as a face image in a spectacle-frame non-wearing state and prepares a third image obtained by associating the first image and the second image; a display screen unit that displays the third image prepared by the information processing unit; an operation unit that specifies a measurement reference point of the spectacle wearing parameter on the third image displayed on the display screen unit; and a measurement computation section that calculates the spectacle wearing parameter by using data of the specified measurement reference point. 1. A spectacle wearing parameter measurement device used in measurement of a spectacle wearing parameter of a subject who is to wear a spectacle frame , the spectacle wearing parameter measurement device comprising:an information processing unit that acquires each of a first image as a face image of the subject in a spectacle-frame wearing state and a second image as a face image in a spectacle-frame non-wearing state and prepares a third image obtained by associating the first image and the second image;a display screen unit that displays the third image prepared by the information processing unit;an operation unit that specifies a measurement reference point of the spectacle wearing parameter on the third image displayed on the display screen unit; anda computation unit that calculates the spectacle wearing parameter by using data of the specified measurement reference point.2. The spectacle wearing parameter measurement device according to claim 1 , whereinthe third image is a synthetic image obtained by synthesizing the first image in the spectacle-frame wearing state and the ...

Device and Method for Detecting Ophtalmic and/or Brain Diseases

System for monitoring at least one biomechanical ophthalmic parameter, the system comprising a measuring device (1) adapted to be placed on or implanted into an eye of a patient for measuring said at least one biomechanical ophthalmic parameter of said eye, a recording device (6) for obtaining from said measuring device (1) measurement data representative of the instant value of said at least one biomechanical ophthalmic parameter of said eye, wherein said recording device is adapted to obtain said measurement data at a predetermined frequency equal to or greater than twice the variation frequency of said at least one biomechanical ophthalmic parameter. Method comprising monitoring at least one biomechanical ophthalmic parameter of an eye of a patient using a measuring device (1) adapted to be placed on or implanted into an eye of a patient for measuring the at least one biomechanical ophthalmic parameter of the eye, obtaining from the measuring device (1) a plurality of measurement data ...

Display system and method

A system for improving a patient's vision, comprising means for diagnosing and monitoring a deterioration in macular vision or macular vision loss in the patient's eye, and means for augmenting the use of a preferred retinal location (PRL) and eccentric fixation in case the deterioration in macular vision or macular vision loss was detected. A method for improving a patient's vision, comprising: diagnosing and monitoring a deterioration in macular vision or macular vision loss in the patient's eye; and augmenting the use of a preferred retinal location (PRL) and eccentric fixation in case the deterioration in macular vision or macular vision loss was detected.

Wavefront interactive refraction display

Embodiments of this invention generally relate to systems and methods for wavefront interactive refraction display and more particularly to systems and methods for capturing and displaying eye wavefront interactive refraction data based on the desired refractive state of the patient's eye.

Optical coherence tomography-based ophthalmic testing methods, devices and systems

In accordance with one aspect of the present invention, an optical coherence tomography-based ophthalmic testing center system includes an optical coherence tomography instrument comprising an eyepiece for receiving at least one eye of a user or subject; a light source that outputs light that is directed through the eyepiece into the user's or subject's eye, an interferometer configured to produce optical interference using light reflected from the user's/subject's eye, an optical detector disposed so as to detect said optical interference; and a processing unit coupled to the detector. The ophthalmic testing center system can be configured to perform a multitude of self-administered functional and/or structural ophthalmic tests and output the test data.

Endoscopic image processing apparatus

A raw image and a processed image having several color assigned to IHb values, which correspond to hematic information, can be produced from a signal produced by a CCD incorporated in an electronic endoscope. When display of a quasi color image is enabled, the processed image is displayed in the form of a still image. When a release switch is handled, the quasi color processed image is photographed using a monitor photographing apparatus and thus recorded. Thereafter, a still image of a raw image depicting the same scene as the processed image can be displayed.

Image processing method and system for edge detection and laser eye surgery system incorporating the same

A method of imaging an object includes obtaining an image data set from a raster scan. The image data set has a plurality of data points, each data point having an associated location and intensity; generating a reduced data set by selectively removing one or more data points from the image data set based upon an assigned probability of retaining the one or more data points in the data set, the assigned probability being a function of the intensity of a data point; generating a triangulation graph as a planar subdivision having faces that are triangles, the vertices of which are the data points and the edges of which are adjacent vertices; and segmenting the triangulated data set by finding a path with lowest cost between that vertex and every other vertex, wherein the cost is a function of the respective intensity of the vertices.

Systems and methods for evaluating human eye tracking

Systems and methods are disclosed for evaluating human eye tracking. One method includes receiving data representing the location of and/or information tracked by an individual's eye or eyes before, during, or after the individual performs a task; identifying a temporal phase or a biomechanical phase of the task performed by the individual; identifying a visual cue in the identified temporal phase or biomechanical phase; and scoring the tracking of the individual's eye or eyes by comparing the data to the visual cue.

DEVICE FOR SCREENING CONVERGENCE INSUFFICIENCY AND RELATED COMPUTER IMPLEMENTED METHODS

A device is for screening a person for CI and may include a binocular viewer, a display adjacent the binocular viewer, and a processor and associated memory cooperating with the display. The processor may be configured to display on the display a first visual stimulus and a second visual stimulus, cause, in alternating fashion, convergent movement and divergent movement in the first visual stimulus and the second visual stimulus along a visual stimulus path, determine respective centroid positions of the second eye and the first eye during the convergent and divergent movement of the first visual stimulus and the second visual stimulus, and calculate an IPD, and compare the IPD with the visual stimulus path to obtain a dynamic IPD, the dynamic IPD serving as an indicator for whether the person has CI.

SYSTEM AND METHOD FOR DETERMINING DISTANCES FROM AN OBJECT

A process for assessing at least one characteristic of a user's vision includes determining a characteristic of at least one camera of a mobile device; using the at least one camera, capturing at least one image of an object; determining, with reference to a portion of the at least one image composed of the object, a distance from the mobile device to the object at a time of capture of the at least one image; and receiving input from the user in response to material presented on the object.

PERIMETER

In a perimetry to be conducted, designating an inspection region through a region designator, stimuli are presented to regions separated in an up/down direction, an oblique direction and a right/left direction from the inspection region (“the spaced region”) in addition to the designated inspection region. At the result, examinees are not able to predict to which of both regions, the inspection region and the spaced region the stimuli are presented, thereby obtaining correct inspection results that do not receive a prediction of the examinees.

EYE MOVEMENT IN RESPONSE TO VISUAL STIMULI FOR ASSESSMENT OF OPHTHALMIC AND NEUROLOGICAL CONDITIONS

The present invention generally relates to apparatus, software and methods for assessing ocular, ophthalmic, neurological, physiological, psychological and/or behavioral conditions. As disclosed herein, the conditions are assessed using eye-tracking technology that beneficially eliminates the need for a subject to fixate and maintain focus during testing or to produce a secondary (non-optical) physical movement or audible response, i.e., feedback. The subject is only required to look at a series of individual visual stimuli, which is generally an involuntary reaction. The reduced need for cognitive and/or physical involvement of a subject allows the present modalities to achieve greater accuracy, due to reduced human error, and to be used with a wide variety of subjects, including small children, patients with physical disabilities or injuries, patients with diminished mental capacity, elderly patients, animals, etc.

RETINOSCOPE

A retinoscope comprises a refracting unit that has a lens module therein and is located at a predetermined distance from eyes of a person to be tested such that a line of sight of the person to be tested passes through an optometry window; a main body for supporting the refracting unit; a retinoscope unit coupled to one surface of the main body and maintained at a predetermined distance from the refracting unit; and the operating unit that operates driving of the refracting unit and the retinoscope unit. 1. A retinoscope comprising:a refracting unit that includes a lens module in which a plurality of lenses necessary for correction are selectively located on an optometry window for obtaining a correction value for correcting an eye of an examinee and that is located at a predetermined distance in front of the eye of the examinee such that a line of sight of the examinee passes through the optometry window;a main body configured to support the refracting unit;a retinoscope unit coupled to one surface of the main body to maintain a predetermined distance from the refracting unit, configured to project light beams to the eye of the examinee near the line of sight of the examinee, and configured to rotate or reciprocate the light beams upon receiving a signal from a manipulating unit; andthe manipulating unit configured to manipulate operations of the refracting unit and the retinoscope unit.2. The retinoscope of claim 1 , further comprising:a camera unit mounted on the retinoscope unit to scan incident light beams projected into the eye of the examinee and reflected light beams reflected from a pupil; anda display unit configured to receive an image scanned and transmitted by the camera unit and display the image.3. The retinoscope of claim 1 , wherein the refracting unit is coupled to the main body to be movable forward and backward such that distance from the eye of the examinee is adjustable.4. The retinoscope of claim 3 , wherein the main body comprises a ...

DEVICE AND METHOD FOR FORMAT CONVERSION OF FILES FOR THREE-DIMENSIONAL VISION

A device for conversion of formats (f1) of files (F) in a format (f2) for three-dimension (3D) vision, having a receiving unit to receive a plurality of source images (I1) source in the file (F) in the format (f1), a processing unit having a checking module configured for checking whether the image (I1) is a double right-left channel image, a first processing module configured to represent a left part of the image in a left image (SI1) and a right image (DI1), an interlacing module configured to create an interlaced image (lint) for the image (I1) in which even pixel columns of the interlaced image (lint) are defined as a function of the left image (SI1) and odd pixel columns of the interlaced image (lint) are defined as a function of the right image (DI1), thereby converting the file (F) in the format (f2) for three-dimension (3D) vision. 112. A conversion device of first format (f) of a file (F) into a second format (f) for three-dimension (3D) vision , wherein the device comprises:{'b': 1', '1, 'i': 'i', 'a receiving unit configured to receive a plurality of source images (I) in said file (F) in said first format (f);'} [{'b': '1', 'i': 'i', 'claim-text': check whether said source image in said file (F) is a double right-left channel image;', 'write a check worth (CK) in a memory module as a function of said check;, 'a checking module, acting on every source image of said plurality of source images (I), configured to, start in function of said check worth (CK)=FALSE to represent said source image in a format of double right and left channel;', {'b': '1', 'represent a left part of said source image in a left image (SI) and a right part of said source image in a right image (DM);'}, 'set said check worth (CK)=TRUE;, 'a first processing module configured to, start in function of said check worth (CK)=TRUE;', {'b': 1', '2, 'create an interlaced image (lint) for said source image wherein even pixel columns of said interlaced image (lint) are defined as a function of ...

Ophthalmic apparatus

An ophthalmic apparatus includes a control unit configured to control a scanning unit so that scanning lines of a first field and scanning lines of a second field are alternately arranged in a direction crossing the scanning lines, and a detection unit configured to, in a case where one of first front images of the first field is selected as a reference image, detect movement of the subject's eye using information indicating a position gap between the reference image and the first front images, and detect the movement of the subject's eye using information indicating a position gap between the reference image and second front images of the second field and information indicating a difference in position between the first field and the second field.

OPTICAL COHERENCE TOMOGRAPHY AS A RAPID, ACCURATE, NON-CONTACT METHOD OF VISUALIZING THE PALISADES OF VOGT

The innovation provides for a system and method available to image and visualize the palisades of Vogt via a non-contact process, analyze the image volumes acquired, evaluate the status of the palisades of Vogt from the data represented therein, and display the data in real-time or as a part of a medical record for ongoing consideration and evaluation.

METHOD FOR OPHTHALMIC EXAMINATION AND REMOTE EXAMINATION PROGRAM

Provided is a method for an ophthalmic examination by an ophthalmic examination system including an ophthalmic examination apparatus and an examiner-side apparatus that is connected to the ophthalmic examination apparatus by a network and is provided with an interface for input/output, the method including: a transmission step of transmitting an error signal from the ophthalmic examination apparatus to the examiner-side apparatus upon occurrence of an error in the ophthalmic examination apparatus; a selection step of, upon the examiner-side apparatus receiving the error signal, notifying an examiner of the occurrence of the error via the interface and also accepting selection input for selecting any of a plurality of predetermined handling methods of the error; a response step of the examiner-side apparatus transmitting a response signal to the ophthalmic examination apparatus on the basis of the selection input; and a notification step of, upon the ophthalmic examination apparatus receiving ...

Alignment and diagnostic device and methods for imaging and surgery at the irido-corneal angle of the eye

A device for visualizing an irido-corneal angle of an eye through a window of a patient interface configured to be placed on the eye includes and optics structure and at least one imaging apparatus. The optics structure is configured to engage with the patient interface to provide a line of sight through the window in the direction of the irido-corneal angle, and to subsequently disengage from the patient interface. The imaging apparatus is associated with the optics structure and aligned with the line of sight to enable capturing an image of the eye including the irido-corneal angle.

Systems and methods for continuous objective assessment of near work

Systems and methods for continuous objective assessment are discussed herein. The systems and methods may comprise sensor(s), a processor, a clock, data storage, and a power source. The sensor(s) may continuously monitor viewing distances, light exposure, or the like, and the system may log corresponding time and/or duration information. Also provided herein are methods of treating, preventing, and/or diagnosing vision impairment risk. These systems and methods may provide warns, such as when detecting the viewing of materials too closely (e.g. ≤30 cm), near to near intermediate viewing (e.g. ≤70 cm) exceeding a predetermined time (e.g. ≥20 min.) without a break, and/or not getting enough outdoor light exposure (e.g. at least 75 minutes of exposure at >1000 lux) for the day.

Systems and methods for providing surface contrast to display images for micro-surgical applications

Systems and methods for providing surface contrast to display images for micro-surgical applications are disclosed. According to an aspect, an imaging system includes an OCT apparatus configured to capture OCT data of an eye. The OCT image data can include depth-resolved images of reflected light intensity over a period of time. The imaging system also includes a controller configured to determine movement of the eye relative to the OCT imaging field-of-view. The controller may also determine a location within the imaged portion of the eye which tracks with the eye movement. Further, the controller may apply a color gradient to render OCT images of the eye based on a position relative to the determined location of the eye tracking location. The controller may also control a display to display the OCT images with the applied color gradient.

УСТРОЙСТВО ОБРАБОТКИ ИЗОБРАЖЕНИЙ И СПОСОБ УПРАВЛЕНИЯ УСТРОЙСТВОМ ОБРАБОТКИ ИЗОБРАЖЕНИЙ

Группа изобретений относится к медицинской технике, а именно к средствам обработки изображений в диагностике и лечении глазных болезней. Устройство содержит блок принятия решения, выполненный с возможностью принятия решения из вторых изображений в отношении по меньшей мере одного изображения, которое включает по меньшей мере одну область, которая не заснята в по меньшей мере одном изображении из первых изображений, и модуль генерации изображения, выполненный с возможностью генерации одного изображения путем использования по меньшей мере одного изображения из первых изображений, и принятия решения в отношении по меньшей мере одного изображения. Способ управления устройством обеспечивается работой устройства с использованием носителя данных, содержащего сохраненную на нем компьютерную программу. Использование изобретений позволяет расширить арсенал технических средств обработки изображений. 3 н. и 8 з.п. ф-лы, 14 ил.

СПОСОБ И УСТРОЙСТВО ДЛЯ ОПРЕДЕЛЕНИЯ ОСТРОТЫ ЗРЕНИЯ ПОЛЬЗОВАТЕЛЯ

УСТРОЙСТВО ОБРАБОТКИ ИЗОБРАЖЕНИЙ И СПОСОБ ОБРАБОТКИ ИЗОБРАЖЕНИЙ

Software zur Steuerung eines 3D-Monitors für die subjektive Refraktion (Sehschärfenprüfung) zur monokularen Refraktion unter binokularen Bedingungen im 3D-Umfeld

Der Anspruch ist dadurch gekennzeichnet, dass Optotypen für den kompletten Ablauf einer Sehschärfenprüfung, in einem dreidimensionalen Bild dargestellt werden.

Ophthalmologic observation apparatus

Visual perimeter measurement system and method

Computerized refraction and astigmatism determination

The present disclosure relates generally to a system and method for determining the refractive error of a patient, more particularly determining the patient's refractive error by using a computerized screen, and providing the patient with a prescription for the patient's preferred type of corrective lenses. The system and method do not require the trip or expense of a doctor visit, and are optimized for convenience and cost effectiveness. In a general embodiment, the present disclosure provides a method for determining a corrective lenses prescription of a patient. The method includes, separately, for each eye of the patient, determining the astigmatism prescription of the patient via a computerized screen, and determining the power of the corrective lenses prescription of the patient via the computerized screen.

Computerized refraction and astigmatism determination

A system for determining a corrective lenses prescription for a subject without the use of a refractor lens assembly. The system comprising: a memory that stores the subject’s vision information that includes a previous corrective-lens prescription; a server communicatively coupled to the memory; a hand held portable electronic device; and a computerised screen. The server presents through the hand-held-device or the screen, a distance the subject is to be positioned from the screen. The subject uses the hand-held-device to interact with the screen to perform a vision test. The server causes the hand-held-device to prompt the subject to access, via the display, a server related webpage to view a unique identifier for entry into the hand-held-device. The hand-held-device and display are separate from each other, each being separately in communication with the server. The server receives data submitted by the subject via the hand-held-device in response to the screen displayed vision test ...

Ophthalmologic observation apparatus

SEHÜBUNGSGERÄT AS WELL AS EQUIVALENT COMPUTER-READABLE STORAGE MEDIUM

Mosaicing and enhancement of images for ophthalmic diagnosis and documentation

Apparatus and methods for testing visual function and functional vision at varying luminance levels

A test of visual function and/or functional vision may be performed at varying luminance levels. A first course may be selected for a subject. A given course may comprise a layout having a beginning point, at least one turn, at least one obstacle, and an ending point. The first course may be illuminated with a first luminance level based on an estimated lower light sensitivity cutoff. The subject may be prompted to perform a first run of the test. The test may comprise, from the beginning point to the ending point, navigating the layout of the first course by walking around the at least one turn and avoiding the at least one obstacle. A determination may be made as to whether the subject successfully completed the first course based on one or both of speed or accuracy.

Apparatus and method for the non-invasive detection of tetrahydrocannabinol use and impairment

The present disclosure is related to a method and apparatus for determining THC usage of a person. The present disclosure describes acquiring a video sequence, of an eye of a patient, the video sequence being a plurality of video frames, determining a frequency spectrum from a pupillary data of the video sequence, and determining, based on the frequency spectrum, the physiological characteristic or drug of use of the patient. In an embodiment, at least one frequency can be probed based on which physiological characteristic is being explored. For example, the physiological characteristic can be Δ⁹-tetrahydrocannabinol, and the at least one frequency probed can be selected to be specific to Δ⁹-tetrahydrocannabinol.

Method and system for determining the refractive properties of an eye of a child

The current invention is directed to a system (30) for determining the refractive properties of an eye (10), the system (30) comprising a wavefront measurement device (32) for measuring the refractive properties of the eye (10), characterized in that the system (30) is configured to have at least one measurement mode assigned to children, wherein the system (30) has an input device (34) configured to switch the system (30) into one of the at least one measurement mode assigned to children, and wherein the system (30) is further configured to alter at least one of a group consisting of a default pupillary distance (54), a default cornea vertex distance (52), a default position (33) of the wavefront measurement device (32), a default position and/or direction of a measurement ray (58) of the wavefront measurement device (32), a default position (47) of a forehead and chin rest assembly (40) of the system (30) and a fixation target (38) when the system (30) is switched into the one of the ...

SYSTEMS AND METHODS FOR DISPLAYING OBJECTS ON A SCREEN AT A DESIRED VISUAL ANGLE

According to one or more embodiments, the processes and systems disclosed allow for displaying objects on a screen at a desired visual angle, and more particularly, in one aspect, to systems and methods for displaying optotypes during an eye examination.

IMAGE GENERATING DEVICE, EYEGLASS LENS SELECTION SYSTEM, METHOD FOR IMAGE GENERATION AND PROGRAM

An image forming device comprises: a feature detection unit for detecting features from an image created by capturing a subject viewing a display device; a parameter calculation unit for calculating the distance between the subject and the display device and the direction of the subject's face on the basis of the position of the detected features and/or the distance between detected features; an image forming unit for creating a virtual field image when the subject views the display device through an eyeglass lens on the basis of the distance between the subject and the display device and the direction of the subject's face; and a display control unit for displaying the virtual field image on the display device.

METHOD FOR ALTERING THE VISUAL PERFORMANCE OF A SUBJECT, METHOD FOR MEASURING THE SPHERICAL REFRACTION CORRECTION NEED OF A SUBJECT AND OPTICAL SYSTEM FOR IMPLEMENTING THESE METHODS

The invention relates to a method for altering the visual performance of a subject using an optical system arranged in front of at least one eye of the subject, and comprising: b) determining an optotype; c) displaying the optotype to the subject in such a way that it is visible by the subject through said optical system; d) assessing the visual performance of the subject viewing the optotype through the optical system; and e) adding a positive or negative altering value of spherical optical power to the optical system. According to the invention, the method comprises, before step b): a) choosing a target value of visual performance; and and in that, at step b), said optotype has a size which is determined depending on said target value of visual performance; - at step e), said altering value of spherical optical power is determined depending on said target value of visual performance.

APPLICATION TO DETERMINE READING/WORKING DISTANCE

A method of measuring working distance between a handheld digital device and eyes of a user, including capturing an image of at least eyes of a user via an onboard camera of the handheld digital device while the user is viewing a display of the handheld digital device and comparing an apparent angular size of a structure of the eyes or face of the user to a previously captured image of the structure of the eyes or the face that was taken in the presence of an object of known size. The method further includes calculating a working distance based on the apparent angular size of the structure of the eyes or the face; and saving at least the working distance to memory or reporting out the calculated working distance on the display. A handheld digital device programmed with an algorithm to perform the method is also included.

DIGITAL THERAPEUTIC CORRECTIVE SPECTACLES

Devices for testing, identifying, and compensating for ocular pathologies affecting the vision of a patient are provided in the form of digital therapeutic corrective spectacles that provided personalized, customized visual field corrected/enhancement. The devices include wearable spectacles with one or more digital monitors that are used to recreate an entire visual field as a digitized corrected image or that include custom-reality glasses that can be used to overlay a visual scene with generated image to correct or enhance the visual field of the subject.

METHOD AND SYSTEM FOR DETERMINING A PUPILLARY DISTANCE OF AN INDIVIDUAL

A method for determining a pupillary distance of an individual (2), comprises the following steps: - displaying an object on a screen (15) located in front of the individual (2), the displayed object (17a) being positioned at a location in front of one eye (19a) of the individual (2), - instructing the individual (2) to look with at least said eye (19a) at said displayed object (17a), - acquiring at least an image of a part of the body of the individual (2) including said eye (19a), - determining the location of a plurality of specific features in the acquired image, one of the specific features being a pupil (3a) of said eye of the individual (2), - calculating the pupillary distance based on the location of the plurality of specific features. A corresponding system is also described.

OPTOMETRIC APPARATUS, OPTOMETRIC METHOD, AND OPTOMETRIC SERVER

An optometric apparatus and an optometric method capable of performing optometry and coping with an examinee having an astigmatic eye by using a computer screen without requiring a special facility. Attributes of the examinee are acquired and an astigmatic axis judgment chart is displayed on the computer screen, so that the direction selected by the examinee is acquired. An eyesight measurement chart is displayed for the acquired direction and the direction orthogonal to that, so that an observation limit selected by the examinee is acquired. A far point distance is calculated from the acquired observation limit. A diopter is calculated by using the acquired direction and the acquired two far point distances.

SMARTPHONE-BASED HANDHELD OPHTHALMIC EXAMINATION DEVICES

Various examples of methods, systems and devices are provided for ophthalmic examination. In one example, a handheld system includes an optical imaging assembly coupled to a user device that includes a camera aligned with optics of the optical imaging assembly. The user device can obtain ocular imaging data of at least a portion of an eye via the optics of the optical imaging assembly and provide ophthalmic evaluation results based at least in part upon the ocular imaging data. In another example, a method includes receiving ocular imaging data of at least a portion of an eye; analyzing the ocular imaging data to determine at least one ophthalmic characteristic of the eye; and determining a condition based at least in part upon the at least one ophthalmic characteristic.

DEVICE AND METHOD OF CALIBRATION FOR AN EYE TRACKER AND EYE CONTROL EQUIPMENT COMPRISING SAID CALIBRATION DEVICE

A calibration method for an eye tracker (2) provides for the defining of at least one first region of attraction (A1; A2 ) of a first image to be displayed to a user; acquiring a first sequence of data relative to the eye movement of a user who is looking at the first image by means of an eye tracker (2); calculating at least a plurality of first calibration positions by means of respective calibration functions (fj) on the basis of a first gaze determined from the first sequence of data relative to eye movement; assigning a first score to each calibration function (fj) on the basis of the respective first calibration position and the first region of attraction (A1 A2 ); and selecting one of the calibration functions (fj) on the basis of the score.

USER ADJUSTABLE MEASUREMENT SCALE ON VIDEO OVERLAY

... (57) Abstract: A method and system for superimposing a ruler on a visual representation of a surgical procedure is presented. The design includes providing a reference object while recording the visual representation of the surgical procedure, scaling the ruler to correspond to the reference object within the visual representation of the surgical procedure, and superimposing the ruler from the scaling on the visual representation for subsequent viewing.

INTRAOCULAR LENS ALIGNMENT USING CORNEAL CENTER

A method for generating a radial alignment guide for an eye includes collecting preoperative corneal topography data. The data includes a corneal vertex location and a pupil center location for an eye that is not dilated. The method then includes locating a dilated pupil center for the eye after the eye is dilated. The method further includes determining an adjusted offset between the corneal vertex and the dilated pupil center and displaying alignment data on an image of the eye based on the adjusted offset.

VISION TESTING SYSTEM AND METHOD

A method for testing a person's vision is disclosed. The method includes providing, for display to the person, one or more sequences of test images, each test image including one or more test symbols. For each test image, a target symbol is identified to the person. The person then views each test image in the sequence and activates a control in response to recognising a test symbol that replicates the shape of the target symbol. At the completion of the sequence, a parameter value associated with the activations is processed and correlated with a vision metric. A system for testing a person's vision is also disclosed.

SYSTEMS AND METHODS FOR DETECTING BLINK INHIBITION AS A MARKER OF ENGAGEMENT AND PERCEIVED STIMULUS SALIENCE

The present systems and methods provide a mechanism to assess viewer behavior, features of stimuli, and the interaction between viewer behavior and stimuli. The systems and methods described herein for quantifying blink response and blink inhibition provide moment-by-moments measurements of viewer engagement by measuring what is or is not engaging enough to warrant viewers' inhibition of blinking. The present disclosure describes measures of visual scanning, eye movements, blink data, and blink timing data to derive a measure of how engaged a person is with what he or she is looking at. Blink-related data as a measure of viewer engagement provides a mechanism for determining the most engaging spatial and temporal aspects of a stimulus.

METHOD FOR OPTOTYPE REPRESENTATION, OPTOTYPE REPRESENTATION, CORRESPONDING USE AND IMAGE OUTPUT DEVICE

Disclosed is a method for representing optotypes (2) using an image output device (4) in order to test visual acuity and/or determine refraction. In said method, optotypes (10) are displayed in a three-dimensional image (6), and the image is subdivided in such a way that the optotypes (10) can be perceived by one eye under binocular conditions, the three-dimensional image (6) being perceivable in a binocular manner.

METHOD AND SYSTEM FOR DETERMINING THE REFRACTIVE PROPERTIES OF AN EYE OF A CHILD

The current invention is directed to a system (30) for determining the refractive properties of an eye (10), the system (30) comprising a wavefront measurement device (32) for measuring the refractive properties of the eye (10), characterized in that the system (30) is configured to have at least one measurement mode assigned to children, wherein the system (30) has an input device (34) configured to switch the system (30) into one of the at least one measurement mode assigned to children, and wherein the system (30) is further configured to alter at least one of a group consisting of a default pupillary distance (54), a default cornea vertex distance (52), a default position (33) of the wavefront measurement device (32), a default position and/or direction of a measurement ray (58) of the wavefront measurement device (32), a default position (47) of a forehead and chin rest assembly (40) of the system (30) and a fixation target (38) when the system (30) is switched into the one of the ...

VITAL STAIN VISUALIZATION IN OPHTHALMIC SURGICAL PROCEDURES AND ASSOCIATED DEVICES, SYSTEMS, AND METHODS

A method of imaging in an ophthalmic surgical procedure can include determining an excitation wavelength of light associated with a vital stain; transmitting light having the excitation wavelength; determining an emission wavelength of light associated with the vital stain; filtering light using a first optical element to allow transmission of light having the emission wavelength and to block light having the excitation wavelength. An ophthalmic surgical imaging system can include a light source, one or more optical elements, an image sensor, a computing device, and/or a display device to visualize target biological tissue stained with a fluorescent vital stain. A method of imaging in an ophthalmic surgical procedure can include determining a wavelength of light that increases the visual contrast of a vital stain; transmitting light having the determined wavelength; and receiving a reflection of the transmitted light such that target biological tissue stained by the vital stain is accentuated ...

APPARATUS FOR TREATING AN EYE USING A LASER BEAM

An apparatus (1) for treating an eye using a laser beam includes a first light source (6) for producing a therapeutic laser beam (7), a second light source (8) for producing an alignment beam (9), and control means (2, 3, 4, 10) for controlling the first and the second light source and for directing the therapeutic laser beam and the alignment beam onto the retina (13) of the eye (12) being treated. According to the invention that the control means (2, 3, 4, 10) are arranged to control the second light source (8) and to direct the alignment beam (9) onto the retina (13) of the eye (12) being treated in such a way that the alignment beam forms a visual message (17) onto the retina as a function of at least one operational property of the therapeutic laser beam (7).

Identification of the eyesight of the eye covering to method and apparatus

Image processing apparatus and control method of the Image processing apparatus

For determining eye refraction method and device

VISUAL TEST METHOD, CONTROL MODULE AND SYSTEM THEREFOR

VISUAL TEST METHOD, CONTROL MODULE AND SYSTEM THEREFOR

УСТРОЙСТВО ДЛЯ ИССЛЕДОВАНИЯ ПОЛЯ ЗРЕНИЯ

Изобретение относится к медицине, к офтальмологии. Технический результат состоит в повышение качества и достоверности информации, получаемой при исследовании поля зрения пациента. Заявляемое устройство для исследования поля зрения содержит корпус (1) с ручкой (18) и смотровым окном (16) для наблюдения пациентом на демонстрационном экране (2), установленном в полости корпуса (1), световых точечных тест-объектов (4) и фиксационных световых тест-объектов (5, 6), размещенных в перфорационных отверстиях перфорированного сектора сферы (3). Демонстрационный экран (2) из полупрозрачного материала обращен к внутренней поверхности перфорированного сектора сферы (3), осесимметричен с ним и повторяет его форму. Внутри корпуса (1) расположено устройство подсветки (12) демонстрационного экрана (2). Источники излучения световых точечных тест-объектов (4), фиксационных световых тест- объектов (5,6) и устройства подсветки (12) связаны с блоком (14) питания, управления и регистрации.

Method and apparatus for corrective secondary saccades analysis with video oculography system

A video oculography system for calculation and display of Corrective Secondary Saccades Analysis is disclosed. A method for Objective Diagnostics of at least one of traumatic brain injury, Internuclear Opthalmopligia, Ocular Lateral Pulsion, Progressive Supernuclear Palsy And Glissades comprises the steps of using a VOG system to calculate corrective saccades. The video oculography based system for the subject is configured to collect eye images of the patient in excess of 60 hz and configured to resolve eye movements smaller than at least 3 degrees of motion. The video oculography based system collects eye movement data wherein at least one fixation target is presented to the subject in a defined position configured to yield a voluntary saccadic eye response from at least one eye of the patient. The latency, amplitude, accuracy and velocity of each respective corrective saccade and totals latency and accuracy is calculated.

Method for optimizing and/or manufacturing eyeglass lenses

A method for determining an optical eyeglass lenses design for a viewer comprising the successive steps of: showing the viewer a stereoscopic scene, said scene being shown with optical effects of the first lens design; expressing the viewer's opinion; showing the viewer a stereoscopic scene including optical effects of a modified lens design; introducing a relative movement between the viewer and the shown stereoscopic scene, and said scene being shown with the modified lens optical effects; expressing again the viewer's opinion; repeating the three last steps up to viewer's satisfaction. A system for customizing vision correction suitable to implement said method. Related computer program for dynamically calculating a stereoscopic image. Related computer program for actuating an electro-active component.

Corneal endothelial cell photographing apparatus

A corneal endothelial cell photographing apparatus comprises: a main unit including: an illumination optical system for illuminating illumination light from an illumination light source toward a cornea of an examinee's eye from an oblique direction; an imaging optical system for obtaining a corneal endothelial cell image by receiving, through an imaging element, reflection light from the cornea including corneal endothelial cells; and a fixation optical system including a plurality of fixation targets and for guiding a fixation direction of the examinee's eye; a drive unit to relatively move the main unit with respect to the examinee's eye; a serial photographing unit to obtain endothelial images in series at different photographing positions in previously set up-and-down and right-and-left directions; and a monitor to display the obtained endothelial image.

Compensated method of displaying based on a visual adjustment factor

A method and a device for displaying images on a display based on a visual adjustment factor related to a user's prescription eyewear are provided. The display includes a front display plane and a back display plane and for each of a plurality of image elements of an image, a respective version of the image element is displayed on each of the front display plane and the back display plane based on the visual adjustment factor such that the respective versions of the image element differ in at least one of line weight and transparency.

Non-linear projections of 3-d medical imaging data

The present invention improves projection displays of volume data. Using the Minimum Intensity Projection (MinIP), fluid filled regions or other regions of hyporeflective tissue are displayed. By limiting the projection to partial volumes within the volume, differences in the scattering intensity within specific regions are isolated. In this way, hyperreflectivity of weakly scattering tissue can be assessed.

METHOD FOR SUPPRESSING THE LUMINANCE ARTIFACTS OF LCD MONITORS IN ELECTROPHYSIOLOGY OF VISION

A visual stimulation method and system for the field of electrophysiology of vision to obtain the suppression of the recording artifacts due to the luminance transients of the LCD monitors during the inversion of a main stimulation pattern () composed of a plurality of geometric elements, each of which is represented by a pair of complementary micropatterns () and where the micropattern of each pair alternate between them in a synchronised manner with the frame rate. 110-. (canceled)11. A method for obtaining the suppression of the luminance artifacts of LCD monitors used as visual stimulator for recording Visual Evoked Potentials (VEP) and pattern-electroretinogram (PERG) by means of an LCD monitor and a stimulation pattern , comprising:generation and visualisation of a sequence of main patterns made of a plurality of elements, said sequence of main patterns being able to elicit the visual electrophysiological response in a subject, andrecordation of the visual electrophysiological response of the subject to said sequence of main patterns, said method being characterised in that each element is represented by means of a pair of complementary micropatterns having the following properties:i. each micropattern of the pair is shaped from an even number of elements comprising equal pluralities of luminous and black geometric elements in order to display the same mean luminance when the micropatterns of the pair of complementary micropatterns alternate, in a synchronized manner, with the frame rate;ii. the luminous geometric elements of the pair of micropatterns have the same colour of the represented element of the main pattern, but have double the luminous intensity, so as to display the same mean luminance of the element of the main pattern;iii. when the pair of complementary micropatterns alternates, the luminous geometric elements of one micropattern replace the corresponding black geometric elements of the other micropattern and vice versa, so that each ...

Ophthalmologic photographing apparatus and ophthalmologic photographing method

An ophthalmologic photographing apparatus includes: a photographing optical system that includes a scanning unit for scanning an examinee's eye with measurement light to obtain a tomographic image of the examinee's eye; an observing optical system that includes a light-receiving device for receiving reflected light from the examinee's eye to obtain a moving image of a front image of the examinee's eye based on a light-receiving signal from the light-receiving device; a display controller for displaying the front image acquired by the observing optical system in a still state on a monitor as well as enabling setting of a capturing position of the tomographic image, the setting using the front image; and a drive controller for controlling the scanning unit to acquire the tomographic image in accordance with the capturing position.

OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS

An ophthalmologic photographing apparatus includes: a photographing optical system, including a scanning unit for scanning an examinee's eye with measurement light, for obtaining a tomographic image of the examinee's eye; an observing optical system, including a light-receiving device for receiving reflected light from the examinee's eye, for obtaining a front image of the examinee's eye based on a light receiving signal from the light-receiving device; a condition setting unit for setting conditions for capturing a tomographic image; and a tracking controller for performing tracking that controls the scanning unit in a manner of scanning a predetermined photographing portion of the examinee's eye based on a front image acquired by the observing optical system as well as performing tracking related to substantially the same photographing portion even in a case where the photographing condition is changed by the condition setting unit. 1. An ophthalmologic photographing apparatus comprising:a photographing optical system that includes a scanning unit for scanning an examinee's eye with measurement light to obtain a tomographic image of the examinee's eye;an observing optical system that includes a light-receiving device for receiving reflected light from the examinee's eye to obtain a front image of the examinee's eye based on a light receiving signal from the light-receiving device;a condition setting unit for setting conditions for capturing a tomographic image; anda tracking controller for performing tracking that controls the scanning unit in a manner of scanning a predetermined photographing portion of the examinee's eye based on a front image acquired by the observing optical system as well as performing tracking related to substantially the same photographing portion even in a case where the photographing condition is changed by the condition setting unit.2. The ophthalmologic photographing apparatus according to claim 1 , wherein the condition setting unit ...

IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD

In an image processing apparatus that irradiates an object to be inspected with measuring light and synthesizing a plurality of tomographic images acquired on the basis of reflected light to form a new tomographic image in order to reduce speckles in the image and enhance the image quality of the resultant composed image in imaging using optical coherence tomography, the image processing apparatus is provided with an image acquiring unit that acquires a plurality of tomographic images of an object to be inspected and a selection unit that selects tomographic images to be composed from among the plurality of tomographic images on the basis of similarity information about the plurality of tomographic images. 1. An image processing apparatus comprising:an image acquiring unit that acquires a plurality of tomographic images of an object to be inspected; anda selection unit that selects tomographic images to be composed from among the plurality of tomographic images on the basis of similarity information about the plurality of tomographic images.2. An image processing apparatus according to claim 1 , further comprising a similarity information acquiring unit that acquires the degree of similarity of one of the plurality of tomographic images and each of the other tomographic images claim 1 , wherein the selection unit selects tomographic images of which the degree of similarity falls within a predetermined range as the tomographic images to be composed.3. An image processing apparatus according to claim 2 , wherein the selection unit selects tomographic images having different similarities that fall within the predetermined range as the tomographic images to be composed.4. An image processing apparatus according to claim 3 , wherein the selection unit selects tomographic images to be composed in such a way that the number of tomographic images having relatively high similarities among the selected tomographic images is larger than the number of tomographic images having ...

Optical coherence tomography imaging apparatus and method for controlling the same

An optical coherence tomography imaging apparatus that captures a tomographic image of a subject's eye using interference light based on light from a wavelength-swept light source includes a region acquisition unit configured to acquire an imaging target region, a display control unit configured to display information about the acquired imaging target region, and an imaging unit configured to capture a tomographic image by scanning the imaging target region in the subject's eye using light from the wavelength-swept light source.

EYE EXAMINATION SYSTEM

An eye examination system including a patient display visible by the patient during examination and an image capturing device arranged to take an image of the patient's eye during examination, the patient display being arranged to receive and display in real time the image for the patient to view during examination. 1. An eye examination system including a patient display visible by the patient during examination and an image capturing device arranged to take an image of the patient's eye during examination , the patient display being arranged to receive and display in real time the image for the patient to view during examination.2. An eye examination system comprising a slit lamp , a binocular microscope , a support frame for supporting a patient's head to align the patient's eye with a light beam from the slit lamp and with the microscope for observation of the eye by a practitioner , a digital image capturing device arranged to take images of a patient's eye during examination , and a patient display visible by the patient during examination and arranged to receive and display the images to a patient during examination.3. An eye examination system according to arranged to display a series of images in sequence on the patient display to provide a real time video display of the patient's eye during examination.4. An eye examination system according to wherein the patient display is arranged to also display a focus object for a patient during examination.5. An eye examination system according to wherein the patient display is arranged to display a focus object for a patient during examination claim 2 , overlayed on an image of the patient's eye.6. An eye examination system according to wherein the patient display is arranged to display a real time image of the patient's eye as focus object for a patient during examination.7. An eye examination system according to arranged to display one or more targeting mechanisms on the patient display for referencing aspects of ...

SPEED AND DISTANCE ESTIMATION TEST DEVICE

The present invention relates to a test device which is designed for measuring the caution and intuitional capability of the individuals, by providing the individual to make an estimate about the position of the stimulus (U) at a certain time after the visual stimulus (U) disappears from the screen () and after the stimulus continues the movement thereof in an invisible manner. 1. A test device which is designed for measuring the caution and intuitional capability of the individuals , by providing the individual to make an estimate about the position of the stimulus at a certain time after the visual stimulus disappears from the screen and after the stimulus continues the movement thereof in an invisible manner , characterized by comprising:an operating system,at least one input unit with a key pad thereon, in order to provide the data entry to the operating system,an image source which is related to the operating system and which comprises at least one path, at least one stimulus and at least one station which are different from each other,at least one data source which is related to the operating system, which comprises the data therein which is entered by means of the input unit and which comprises the test data to be applied,at least one record unit which is related to the operating system and which keeps the answers given by the individuals during the test,at least one screen which is related to the operating system, which displays said paths, the stimulus and the station and which provides the individuals to realize the selections thereof and which is a touch-screen,a button which is related to the operating system and which provides the individuals to realize the estimation thereof when the individuals think that the stimulus reaches the desired station according to the movement of the stimulus during the test,at least one timer which is related to the operating system and which measures the beginning, finishing and process duration for each process on the ...

OPTICAL TOMOGRAPHIC IMAGING APPARATUS, IMAGE PROCESSING APPARATUS, AND OPTICAL TOMOGRAPHIC IMAGE DISPLAY METHOD

Provided is an optical tomographic imaging apparatus including: a tomographic image acquiring unit for acquiring a tomographic image of an eye of a patient; a scanning type two-dimensional image acquiring unit for acquiring a two-dimensional image of the eye; a patient information storage unit for storing images acquired by the tomographic image acquiring unit and the scanning type two-dimensional image acquiring unit together with patient information; and a display unit. The display unit performs a list display of patient information of at least one patient stored in the patient information storage unit. When one patient is selected from a patient group in the list display, at least one past acquired tomographic image and a two-dimensional image acquired substantially simultaneously with the tomographic image of the patient are displayed as thumbnail images in a list. An image parameter of the tomographic image displayed as the thumbnail image is changeable. 1. An optical tomographic imaging apparatus , comprising:a tomographic image acquiring unit for acquiring a tomographic image by scanning an object to be inspected with measuring light;a two-dimensional image acquiring unit for acquiring a two-dimensional image of the object to be inspected;a patient information storage unit for storing images acquired by the tomographic image acquiring unit and the two-dimensional image acquiring unit together with patient information;a display unit;a display control unit for instructing the display unit about an image to be displayed; anda display input unit for accepting an external input to the display control unit via the image displayed on the display unit,the display control unit comprising an image parameter changing unit for changing an image parameter of the image, and being configured to control the display unit to perform a list display of patients whose patient information is stored in the patient information storage unit and to perform a list display of thumbnail ...

PORTABLE EYE IMAGING APPARATUS

A portable digital imaging device, which utilizes the advanced features of wireless data transmission and high computing power of mobile computing devices in junction with the use miniature cameras and solid state lighting technology, is proposed as the next generation of medical imaging devices, in particular in ophthalmic imaging applications. 1. In a medical imaging system , the combination of an imaging apparatus consisting of imaging optics , electronic imaging sensor , solid state lighting elements , computing and data communicating subsystem;an image computing apparatus consisting of a computer and a screen, and being able to exchange data by wireless means with and receive live images from the imaging apparatus;an image storage apparatus consisting of data storage unit with patient information and images, and being able to exchange data with the image computing apparatus; andan image reviewing apparatus consisting of a detachable computing device and display, and being able to exchange data with the image storage apparatus;where the data exchange among apparatus are in real time and synchronized automatically.2. The medical imaging system recited in wherein is used to image the exterior and posterior of an eye.3. The medical imaging system recited in wherein are powered by batteries respectively.4. The medical imaging system recited in wherein is packaged into a suitcase and carried away in the portable fashion.5. The medical imaging system recited in wherein is packaged onto shelves of a mobile cart and to be used in clinic or surgical rooms.6. An imaging apparatus claim 1 , having a housing claim 1 , a solid state lighting element in housing to provide lighting to the posterior of an eye claim 1 , a battery to power the lighting element claim 1 , imaging and focusing optics in housing to receive the light from the posterior of eye through the optical window contacting the corneal of the eye claim 1 , an electronic image sensor in housing to capture the ...

Ophthalmic diagnosis support apparatus and ophthalmic diagnosis support method

Provided is an ophthalmic diagnosis support apparatus which enables an operator to easily acquire a tomographic image suitable for detailed observation of a candidate lesion without spending time and effort to search for the candidate lesion. The ophthalmic diagnosis support apparatus includes an acquiring unit for acquiring a wide-range image of a fundus, a candidate lesion detection unit for detecting the candidate lesion on the fundus by analyzing the wide-range image, a calculating unit for determining a degree of abnormality of the candidate lesion based on a result of the detection of the candidate lesion, and an acquiring position setting unit for setting an acquiring position of the tomographic image of the fundus based on the degree of abnormality of the candidate lesion.

AUTOMATED REFRACTION EXAMINATION SYSTEM

A system for conducting an automated refraction examination on a patient, including: a phoropter configured to present different optics to the patient; an automated reading rod mounted to the phoropter; and a control unit configured to send signals to perform an automated refraction examination; wherein the phoropter comprises a right member with a right aperture and a left member with a left aperture; wherein the automated reading rod comprises: a reading rod including a first end and a second end; a motor coupled to the first end of the reading rod, wherein the motor is configured to drive the reading rod between a first position and a second position; a mounting interface configured to mount the automated reading rod to the phoropter; a reading card holder coupled to the second end of the reading rod; and a reading card coupled to the reading card holder. 1. A phoropter for conducting an automated refraction examination on a patient comprising:a right member with a right aperture;a left member with a left aperture;an upper member connecting to the right member and the left member;a mounting interface coupled to the upper member;a control unit configured to send signals to conduct the automated refraction examination; and a reading rod comprising a first end and a second end;', 'a motor coupled to the first end of the reading rod, wherein the motor is configured to drive the reading rod between a first position and a second position;', 'a reading card holder coupled to the second end of the reading rod; and', 'a reading card coupled to the reading card holder., 'an automated reading rod mounted to the phoropter via the mounting interface, the automated reading rod comprising2. The phoropter of claim 1 , wherein the control unit is configured to communicate with the patient via an input device and an output device;wherein the output device comprises one or more of a speaker and a display; andwherein the input device comprises one or more of a microphone, a keyboard ...

SYSTEMS, METHODS, AND DEVICES FOR OPTICAL COHERENCE TOMOGRAPHY MULTIPLE ENFACE ANGIOGRAPHY AVERAGING

The disclosure herein provides methods, systems, and devices for improving optical coherence tomography machine outputs through multiple enface optical coherence tomography angiography averaging techniques. The embodiments disclosed herein can be utilized in ophthalmology for employing optical coherence tomography (OCT) for in vivo visualization of blood vessels and the flow of blood in an eye of a patient, which is also known generally as optical coherence tomography angiography (OCTA). The embodiments disclosed herein can use linear registration, affine registration and/or elastic registration to align a plurality of optical coherence tomography angiography images or videos at corresponding superficial vascular layers having well-defined features or landmarks, and to apply the same linear registration, affine registration and/or elastic registration settings and/or data to corresponding deeper tissue layers, such as the choriocapillaris, which generally do not have well-defined features or landmarks, in order to align a plurality of corresponding deeper tissue layers for the purpose of averaging the images or video to produce a clearer and more accurate image or video of the tissue structure at deeper tissue layers. 1. (canceled)2. A system for obtaining and processing images of a biological material , the system comprising:one or more computer readable storage devices configured to store a plurality of computer executable instructions; and access or obtain a plurality of OCT images generated from an OCT scanner;', 'generate, from the plurality of OCT images, a plurality of enface images of one or more superficial layers of the biological material and a plurality of enface images of one or more deep layers;', 'divide each of the plurality of enface images of the one or more superficial layers and each of the plurality of enface images of the one or more deep layers into a plurality of sectors;', 'apply one or more image registration techniques to each of the ...

OPHTHALMIC DIAGNOSIS SUPPORT APPARATUS AND OPHTHALMIC DIAGNOSIS SUPPORT METHOD

Provided is an ophthalmic diagnosis support apparatus which enables an operator to easily acquire a tomographic image suitable for detailed observation of a candidate lesion without spending time and effort to search for the candidate lesion. The ophthalmic diagnosis support apparatus includes an acquiring unit for acquiring a wide-range image of a fundus, a candidate lesion detection unit for detecting the candidate lesion on the fundus by analyzing the wide-range image, a calculating unit for determining a degree of abnormality of the candidate lesion based on a result of the detection of the candidate lesion, and an acquiring position setting unit for setting an acquiring position of the tomographic image of the fundus based on the degree of abnormality of the candidate lesion. 116-. (canceled)17. An ophthalmic apparatus comprising:an acquiring unit configured to acquire a volume image of a fundus;a candidate detecting unit configured to detect a candidate lesion in a retina by analyzing the volume image;a calculating unit configured to calculate a degree of abnormality of the candidate lesion based on a detection result for the candidate lesion;a first determining unit configured to determine coordinates of a first point corresponding to the detected candidate lesion in accordance with the calculated degree of abnormality;a characteristic region detecting unit configured to detect a characteristic region in the fundus by analyzing the volume image, the characteristic region including a macula lutea;a second determining unit configured to determine coordinates of a second point corresponding to the characteristic region detected by the characteristic region detecting unit anda setting unit configured to set a straight line corresponding to an imaging position to be used for acquiring a tomographic image based on the coordinates of the first point corresponding to the candidate lesion and the coordinates of the second point corresponding to the characteristic ...

MONITORING NEUROLOGICAL FUNCTIONAL STATUS

A device for measuring eye movement in a human subject comprises a housing, at least one stimulator mounted to the housing, and a sensor. The at least one stimulator is configured to provide stimulus to one or both eyes of the subject. The sensor is configured to collect information related to movement of one or both eyes of the subject. The device also includes a user interface that is configured to control the at least one stimulator and display information collected by the camera. 117-. (canceled)18. A method for measuring a blink reflex of a subject using a blink reflex device , the method comprising:stimulating one or both eyes of the subject using at least one stimulator so as to cause an involuntarily blink response in the subject; andmeasuring a time period from the stimulating step to when one or both eyes initiates the involuntary blink response.19. The method of claim 18 , wherein the measuring step includes identifying a point on an eyelid of one or both eyes in order to track movement of the eyelid.20. The method of claim 19 , wherein the measuring step further includes:detecting movement of the identified point on the eyelid in response to the stimulus; anddetermining that the subject initiated the involuntary blink based on detection of the movement.21. The method of claim 18 , further comprising:determining a particular time period during which the involuntary blink occurs; the particular time period is greater than a first threshold, or', 'the time period is greater than a second threshold., 'outputting a notification that the subject is suffering from a neurological condition when22. The method of claim 21 , wherein the step of determining the particular time period further includes:determining a first location of an eyelid associated with the at least one eye;detecting, based on determining the first location of the eyelid, movement of the eyelid that initiates the involuntary blink;determining, based on detecting the movement of the eyelid, that ...

AUTOMATED ANALYSIS OF THE OPTIC NERVE HEAD: MEASUREMENTS, METHODS AND REPRESENTATIONS

The present invention relates to structural analysis of the optic nerve head (ONH). In one approach, a 3D volume of intensity data which includes the optic nerve head is acquired using an optical coherence tomography (OCT) system. The vitreoretinal interface (VRI) and the optic disc margin are identified from the 3D data. The minimum area of a surface from the optic disc margin to the VRI is determined. This minimum area can be displayed as an image or in the alternative, a value corresponding to this minimum area can be displayed. The minimum area measurement provides relevant clinical information to determine the health of the eye. 1. (canceled)2. A method of analyzing the optic nerve head of a patient , said method comprising the steps of:acquiring a 3D volume of data using an optical coherence tomography (OCT) device, said volume including the optic nerve head;identifying the vitreoretinal interface (VRI) from the 3D data;defining an optic disc margin from the 3D data;determining the 3D surface between the optic disc margin and the VRI having the smallest possible area; anddisplaying or storing the 3D surface or a further analysis thereof.3. A method as recited in claim 2 , in which the step of determining the 3D surface comprises the steps of:dividing the optic disc margin into sectors;determining a value corresponding to the minimum area of a surface from the optic disc margin to the VRI for each sector; andsumming the determined values.4. A method as recited in claim 2 , in which the step of determining the 3D surface comprises:defining a series of vectors extending from points around the optic disc margin and extending to the VRI and pointing towards a centrally located axis that runs perpendicular through the optic disc margin; andcalculating a minimum cross-sectional area for regions associated with each of the vectors, where these cross-sectional areas are a function of at least the distance from the axis to the point on the disc margin, the angle between ...

OPHTHALMIC EXAMINATION AND DISEASE MANAGEMENT WITH MULTIPLE ILLUMINATION MODALITIES

Imaging various regions of the eye is important for both clinical diagnostic and treatment purposes as well as for scientific research. Diagnosis of a number of clinical conditions relies on imaging of the various tissues of the eye. The subject technology describes a method and apparatus for imaging of the back and/or front of the eye using multiple illumination modalities, which permits the collection of one or more of reflectance, spectroscopic, fluorescence, and laser speckle contrast images. 1. An ophthalmic imaging device , comprising:A) an illumination module capable of generating a plurality of illumination modalities, wherein the illumination modalities include coherent illumination and incoherent illumination, and wherein the illumination module is configured to perform one or more of laser speckle contrast imaging, spectroscopic imaging, reflectance imaging, or fluorescence imaging;B) one or more imaging sensors configured to collect light from one or more regions of tissue of the eye;C) (i) an optical assembly comprising one or more optical elements configured to direct light from the illumination module to the one or more regions of tissue of the eye, and further configured to direct light from the one or more regions of tissue of the eye to the one or more imaging sensors; or (ii) a first optical assembly comprising one or more first optical elements configured to direct light from the illumination module to the one or more regions of tissue of the eye and a second optical assembly comprising one or more second optical elements configured to direct light from the one or more regions of tissue of the eye to the one or more imaging sensors; andD) one or more processors configured to calculate laser speckle contrast values for pixels of the one or more imaging sensors associated with the one or more regions of tissue of the eye, wherein the calculated laser speckle contrast values use properties of a pixel's neighborhood of pixels in spatial or temporal ...

TOMOGRAPHIC IMAGING APPARATUS, TOMOGRAPHIC IMAGING METHOD, IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM

A alteration caused in a nerve fiber layer could not accurately be displayed. There is provided a tomographic imaging apparatus including a generation means for generating a nerve fiber bundle map, a designation means for designating an arbitrary nerve fiber bundle in the nerve fiber bundle map, and a display control means for causing display means to display a parameter of the designated nerve fiber bundle. 1. A tomographic imaging apparatus comprising:a generation unit configured to generate a nerve fiber bundle map;a designation unit configured to designate an arbitrary nerve fiber bundle in the nerve fiber bundle map; anda display control unit configured to cause a display unit to display a parameter of the designated nerve fiber bundle.2. The tomographic imaging apparatus according to claim 1 , wherein the display control unit highlights the designated nerve fiber bundle displayed by the display unit.3. The tomographic imaging apparatus according to claim 1 , wherein the parameter includes one of luminance information claim 1 , retardation information claim 1 , orientation information claim 1 , birefringence information claim 1 , and layer thickness information.4. The tomographic imaging apparatus according to claim 1 , further comprising a fundus image generation unit configured to generate a luminance image and a polarization characteristic image of a fundus of an eye to be examined claim 1 ,wherein the generation unit generates the nerve fiber bundle map based on the luminance image and the polarization characteristic image.5. A tomographic imaging apparatus comprising:a fundus image generation unit configured to generate a luminance image and a polarization characteristic image of a fundus of an eye to be examined, anda generation unit configured to generate a nerve fiber bundle map based on the luminance image and the polarization characteristic image.6. The tomographic imaging apparatus according to claim 4 , wherein the polarization characteristic image ...

OPTICAL COHERENCE TOMOGRAPHY (OCT) SYSTEM WITH IMPROVED MOTION CONTRAST

This disclosure relates to the field of Optical Coherence Tomography (OCT). This disclosure particularly relates to an OCT system with improved motion contrast. This disclosure particularly relates to motion contrast methods for such OCT systems. The OCT system of this disclosure may have a configuration that scans a physical object, which has a surface and a depth, with a beam of light that has a beam width and a direction; acquires OCT signals from the scan; forms at least one A-scan using the acquired OCT signals; forms at least one B-scan cluster set using the acquired OCT signals that includes at least two B-scan clusters that each include at least two B-scans. The B-scans within each B-scan cluster set are parallel to one another and parallel to the direction of the beam of light. The OCT system may have a configuration that calculates OCT motion contrast using the at least one B-scan cluster set. This OCT system may form and display an image of the physical object. 1. An optical coherence tomography (OCT) system having a configuration that:scans a physical object, which has a surface and a depth, with a beam of light that has a beam width and a direction;acquires OCT signals from the scan; each B-scan cluster set includes at least two B-scan clusters;', 'each B-scan cluster includes at least two B-scans;', 'the B-scans within each B-scan cluster set are parallel to one another and parallel to the direction of the beam of light;', 'each B-scan, each B-scan cluster, and each B-scan cluster set are formed at a different time than all other B-scans, B-scan clusters, and B-scan cluster sets, respectively;', 'each B-scan within each B-scan cluster is separated from any next formed B-scan within that B-scan cluster by a distance (“intra-cluster distance”) in the range of 0 to half of the beam width;', 'the last formed B-scan within each B-scan cluster is separated from the first formed B-scan within any next formed B-scan cluster (“inter-cluster distance”) by at ...

APPARATUS AND METHOD FOR SCREENING FOR DEFECTS IN THE SIGHT AND FOR MEASURING THE VISUAL ACUITY OF A USER

A binocular optoelectronic apparatus for screening defects in the sight and for measuring the visual acuity of a user, includes a casing having a right-hand first aperture and a left-hand first aperture, which apertures are intended to be placed facing the right eye and the left eye of a user facing in a first gaze direction, respectively. This apparatus includes: a touchscreen placed so that a first zone of the touchscreen is located in the interior of the casing and a second zone of the touchscreen is accessible from the exterior of the casing; electronic elements suitable for displaying a plurality of optotypes on a first portion of the first zone; and an optical system configured to form a right-hand first image of the first portion of the first zone in the direction of the first right-hand aperture at a first vision distance along a first optical path. 1. A bi-ocular optoelectronic apparatus for screening for defects in the sight of and for measuring the visual acuity of a user , the bi-ocular optoelectronic apparatus including:a housing having a first right aperture and a first left aperture, which apertures are respectively intended to be placed facing the right eye and the left eye of the user facing in a first direction of sight;characterized in that the bi-ocular optoelectronic apparatus includes:a touchscreen comprising a first zone and a second zone that are spatially separate, the touchscreen being placed in the bi-ocular optoelectronic apparatus so that the first zone of the touchscreen is in the interior of the housing and so that the second zone of the touchscreen is accessible from the exterior of the housing;electronic means suitable for displaying a plurality of optotypes in a first portion of the first zone of the touchscreen, internal to the housing;an optical system placed in the interior of the housing, the optical system being configured to form a first right image of the first portion of the first zone of the touchscreen in the direction of ...

SYSTEMS AND METHODS FOR EVALUATING HUMAN EYE TRACKING

Systems and methods are disclosed for evaluating human eye tracking. One method includes receiving data representing the location of and/or information tracked by an individual's eye or eyes before, during, or after the individual performs a task; identifying a temporal phase or a biomechanical phase of the task performed by the individual; identifying a visual cue in the identified temporal phase or biomechanical phase; and scoring the tracking of the individual's eye or eyes by comparing the data to the visual cue. 124-. (canceled)25. A computer-implemented method comprising:receiving data representing a location where an individual's eye or eyes are looking before, during, or after the individual performs a task involving movement of the individual relative to a physical environment;identifying a visual cue of where the individual should be looking during the task, at a point in the physical environment that is associated with the individual or an object during a segment of movement, the visual cue being identified based on performance of the task by one or more other individuals;generating a score of a location where the individual's eye or eyes are looking relative to the location of the visual cue during the segment of movement, based on analysis of the received data relative to the visual cue;generating an electronic display for informing the individual of the location of the visual cue and recommending tasks for the individual to perform based on the location of the visual cue;receiving data representing a location where the individual's eye or eyes are looking before, during, or after the individual performs second or subsequent iterations of the task; andupdating the score or generating a new score based on locations where the individual's eye or eyes are looking relative to the location of the visual cue during segments of movement involved in the second or subsequent iterations of the task.26. The method of claim 25 , wherein the data is one or more of: ...

Method and system for measuring binocular alignment

Embodiments of the invention include a method to determine a binocular alignment, the method comprising: measuring a disassociated phoria of a first eye and a second eye of a patient at an apparent distance; and determining an accommodative convergence of the first eye and the second eye at the apparent distance using the measured disassociated phoria. In other embodiments, a system to determine a binocular alignment comprises a stereo display, for a projection of images for a first eye and a second eye; an accommodation optics, to modify the projection of the images according to an apparent distance; an eye tracker, to track an orientation of the first eye and the second eye; and a computer, coupled to the stereo display, the accommodation optics and the eye tracker, to manage a determination of the binocular alignment.

APPARATUS AND METHOD FOR AUTOMATED NON-CONTACT EYE EXAMINATION

An eye measurement system includes an optical system. The eye measurement system is disposed in a housing which includes an aperture for providing light to and from the optical system and a subject's eye while the subject is separated and spaced apart from the housing, and the eye is not maintained in a fixed positional relationship with respect to the housing. An optical system movement arrangement moves the optical system. An automatic eye tracking arrangement ascertains a current positional relationship of the eye with respect to the optical system without human assistance, and in response thereto controls the optical system movement arrangement to move the optical system into a predetermined positional relationship with respect to the eye, for measurement of the eye, without human assistance. The eye measurement system can make objective, and/or subjective, refraction measurements of the eye. 1. An apparatus , comprising:a processing system including a user interface;an eye measurement system including an optical system, wherein the eye measurement system is configured to make at least one optical measurement of an eye of a subject;a housing having the eye measurement system disposed therein, wherein the housing includes an aperture for providing light to and from the optical system and the eye while the subject is separated and spaced apart from the housing and while the eye is not maintained in a fixed positional relationship with respect to the housing;an optical system movement arrangement which is configured to move the optical system; andan automatic eye tracking arrangement which is configured to ascertain a current positional relationship of the eye with respect to the optical system without human assistance, and in response thereto to control the optical system movement arrangement to move the optical system into a predetermined positional relationship with respect to the eye without human assistance, at least one objective refractive measurement device ...

GOGGLES FOR EMERGENCY DIAGNOSIS OF BALANCE DISORDERS

A system for use by a clinician to perform an emergency diagnosis of a patient for a balance disorder includes a position sensor and an optical sensor that are mounted on a base member. The base member is configured to be fixedly held over the eyes of the patient during a predetermined diagnostic maneuver of the head of the patient. A processor having electronic memory is included which receives outputs from the optical sensor and the position sensor. A set of instructions constituting an eyetracker computer program is processed by the computer. Quantified eye movement data and a video stream signal can be displayed on a visual display that is affixed to the base member for observation by the clinician and recorded in computer readable memory. 1. A system for use by a clinician to perform an emergency diagnosis of a patient for a balance disorder which comprises:a base member, wherein the base member is fixedly held over the eyes of the patient during a predetermined maneuver of the head of the patient;a position sensor mounted on the base member to provide information for identifying an orientation of the head of the patient at preselected locations during the maneuver;an optical sensor mounted on the base member for respectively viewing the eyes of the patient at a sequence of preselected locations during the maneuver;an eyetracker mounted on the base member for recording quantified eye movement data during the maneuver, wherein the quantified eye movement data is collected at each preselected location, for presentation pertinent to respective orthogonal directions;a visual display affixed to the base member for observation by the clinician during the maneuver, wherein the visual display is connected to the optical sensor to present an observable visualization of eye movements during the maneuver in real time, and is connected to the eyetracker to simultaneously present corresponding quantified eye movement data; andan audio prompt for guiding the clinician when ...

EYE IMAGING IN HEAD WORN COMPUTING

Head-worn computers with eye-imaging systems include a camera system positioned in a head-worn computer, wherein the camera system is further positioned to capture eye-image light that originates as reflections from a user's eye, wherein the camera system is further positioned to capture eye-image light as a reflection from a partially reflective surface that is positioned in front of an image display in the head-worn computer, wherein image light, from the image display, is transmitted through the partially reflective surface. A processor is adapted to cause the camera system to capture the eye-image light. The processor is further adapted to cause a comparison of the captured eye-image light with a pre-stored eye image of a known user of the head-worn computer. In the event the comparison confirms the identity of the known user, the user is granted permission to view content to be presented in a display of the head-worn computer. 1. (canceled)2. A system comprising: a camera;', 'a display;', 'a source of image light; and', 'a partially reflective surface positioned to receive image light from the source of image light; and, 'a wearable head device comprising causing image light to be transmitted, via the source of image light and further via the partially reflective surface, toward an eye of a first user of the wearable head device;', 'detecting, via the camera, eye-image light comprising a reflection of at least a portion of light that has been transmitted toward the eye of the first user;', 'comparing the detected eye-image light with eye image data corresponding to an authorized user;', 'determining, based on the comparison, that the first user corresponds to the authorized user; and', 'in response to determining that the first user corresponds to the authorized user, presenting, via the display, a first content to the first user., 'one or more processors configured to perform a method comprising3. The system of claim 2 , wherein:presenting the first content to ...

IMAGE PROCESSING METHOD AND SYSTEM FOR EDGE DETECTION AND LASER EYE SURGERY SYSTEM INCORPORATING THE SAME

A method of imaging an object includes obtaining an image data set from a raster scan. The image data set has a plurality of data points, each data point having an associated location and intensity; generating a reduced data set by selectively removing one or more data points from the image data set based upon an assigned probability of retaining the one or more data points in the data set, the assigned probability being a function of the intensity of a data point; generating a triangulation graph as a planar subdivision having faces that are triangles, the vertices of which are the data points and the edges of which are adjacent vertices; and segmenting the triangulated data set by finding a path with lowest cost between that vertex and every other vertex, wherein the cost is a function of the respective intensity of the vertices. 1. A method of imaging an object comprising:obtaining an image data set from a raster scan of the object, the image data set comprising a plurality of data points, each data point having a location and intensity associated with it;generating a reduced data set by selectively removing one or more data points from the image data set based upon an assigned probability of retaining the one or more data points in the data set, the assigned probability being a function of the intensity of a data point;generating a triangulation graph of the reduced data as a planar subdivision having faces that are triangles, the vertices of which are the data points of the reduced data set and the edges of which are adjacent vertices; andsegmenting the triangulation graph by finding a path with lowest cost between vertices of the triangulation graph, wherein the cost between vertices is a function of the respective intensity of the vertices.2. The method of claim 1 , wherein the object is a human eye.3. The method of claim 1 , wherein the raster scan is conducted by scanning a pulsed laser along the object to be imaged and detecting backreflected light from ...

VISUAL TESTING USING MOBILE DEVICES

A mobile device and a method for testing an individual's vision are provided, the mobile device including a screen for displaying at least one test pattern, such as a smartphone or a tablet computer. A test of the individual's vision is performed using the test pattern displayed on the screen of the mobile device, in particular for testing visual acuity, contrast sensitivity and/or visual disturbances. Further, a parameter influencing the test result is evaluated before and/or during performing the test. The parameter includes at least one of the distance between the eye of the individual and the screen; the brightness at which the test pattern is displayed; and the ambient luminosity. 1. A mobile device for testing an individual's vision , the mobile device , including a screen for displaying a test pattern , ["(i) to perform at least one test of the individual's vision using at least one test pattern displayed on the screen of the mobile device and", the distance between the eye of the individual and the screen;', 'the brightness at which the test pattern is displayed; and', 'the ambient luminosity., '(ii) to evaluate a parameter which includes at least one of'}], 'wherein the mobile device is configured'}2. The mobile device according to claim 1 , wherein the distance between the eye of the individual and the screen and the ambient luminosity are evaluated.3. The mobile device according to claim 1 , wherein the distance between the eye of the individual and the screen claim 1 , the brightness at which the test pattern is displayed and the ambient luminosity are evaluated.4. The mobile device according to claim 1 , wherein the distance between the eye of the individual and the screen is evaluated by detecting the face of the user on the images fed from camera of the device and computing the distance between the two eyes inside the said image in order to estimate the distance between the device and the eye.5. The mobile device according to claim 1 , wherein the ...

FREQUENCY-DOMAIN INTERFEROMETRIC BASED IMAGING SYSTEMS AND METHODS

Systems and methods for improved interferometric imaging are presented. One embodiment is a partial field frequency-domain interferometric imaging system in which a light beam is scanned in two directions across a sample and the light scattered from the object is collected using a spatially resolved detector. The light beam could illuminate a spot, a line or a two-dimensional area on the sample. Additional embodiments with applicability to partial field as well as other types of interferometric systems are also presented. 144-. (canceled)45. A frequency-domain interferometric imaging system for imaging a light scattering object comprising:a light source for generating a light beam;a beam divider for separating the light beam into reference and sample arms, wherein the sample arm contains the light scattering object to be imaged;sample optics for delivering the light beam in the sample arm to the light scattering object to be imaged, the light beam in the sample arm defining a line beam illuminating a linear area spanning a plurality of A-scan locations on the light scattering object at the same time, the linear area defining a first linear field of view (FOV), the sample optics including a beam scanner for scanning the line beam in a direction parallel to, and along, the line beam in the sample arm, so that the linear area is moved to illuminate the object at a plurality of locations defining a scan line having a second linear FOV longer than the first linear FOV;a detector having a plurality of photosensitive elements defining a light-capturing region including a plurality of spatially resolvable A-scan capturing locations arranged to simultaneously capture the plurality of A-scan locations spanned by the linear area, allowing the plurality of A-scan locations to be captured at the same time in parallel with the plurality of photosensitive elements;return optics for combining light scattered from the object and light from the reference arm and directing the ...

Stereoscopic display systems and methods for displaying surgical data and information in a surgical microscope

Stereoscopic display systems and methods for displaying surgical data and information in a surgical microscope are disclosed herein. According to an aspect, a system includes first and second eyepieces. The system includes a display having first and second display portions, configured to display first images in the first display portion, and configured to display second images in the second display portion. The first image and the second image are projected along a first pathway and a second pathway. The system includes a first optical element positioned to relay the first images into the first eyepiece. The system includes a second optical element positioned to relay the second images into the second eyepiece.

SYSTEMS AND METHODS FOR USING VIRTUAL REALITY, AUGMENTED REALITY, AND/OR A SYNTHETIC 3-DIMENSIONAL INFORMATION FOR THE MEASUREMENT OF HUMAN OCULAR PERFORMANCE

A system or method for measuring human ocular performance can be implemented using an eye sensor, a head orientation sensor, an electronic circuit and a display that presents one of virtual reality information, augmented reality information, or synthetic computer-generated 3-dimensional information. The device is configured for measuring saccades, pursuit tracking during visual pursuit, nystagmus, vergence, eyelid closure, or focused position of the eyes. The eye sensor comprises a video camera that senses vertical movement and horizontal movement of at least one eye. The head orientation sensor senses pitch and yaw in the range of frequencies between 0.01 Hertz and 15 Hertz. The system uses a Fourier transform to generate a vertical gain signal and a horizontal gain signal. 1. A human ocular performance measuring device wherein: saccades;', 'pursuit tracking during visual pursuit;', 'nystagmus;', 'vergence;', 'eyelid closure; and', 'focused position of the eyes; and, 'the device is configured for measuring an ocular performance characteristic selected from the group of [ the eye sensor comprises a video camera; and', horizontal eye movement;', 'vertical eye movement; and', 'eyelid movement;, 'the eye sensor senses eye movement information selected from the group of], 'an eye sensor wherein, ["the head orientation sensor senses a head movement selected from the group of pitch and yaw of a person's head wherein pitch represents a rotation about a first axis representing up and down movement of the person's face when the rear of the person's head moves in the opposite direction and yaw represents horizontal movement of the face when looked at from the front about a second axis substantially aligned with the spine and perpendicular to the first axis; and", 'the head orientation sensor senses the head movement in a range of frequencies between 0.01 Hertz and 15 Hertz;', 'the head orientation sensor comprises a micro-electro-mechanical system integrated circuit ...

OPTICAL COHERENCE TOMOGRAPHY SYSTEM AND METHOD WITH MULTIPLE APERTURES

An optical coherence tomography (OCT) system using partial mirrors is generally described. In an example, the OCT system includes a swept light source. The system further includes an interferometer into which light from the light source is directed and a detector configured to produce an imaging sample signal based on light received from the interferometer. The system also includes a partial mirror disposed over an aperture, wherein the partial mirror is configured to transmit light within a first wavelength range and reflect light within a second wavelength range. 1. An optical coherence tomography (OCT) system comprising:a light source configured to emit a light beam;an interferometer configured to split the light beam into a reference beam and a sample beam;a mirror system configured to route the sample beam to at least one of a first aperture or a second aperture for imaging of a sample, wherein the mirror system further comprises a switching mirror configured to selectively direct at least a portion of the sample beam into the first aperture or direct at least a portion of the sample beam towards the second aperture;a first partial mirror positioned across at least a portion of the first aperture, wherein the partial mirror is configured to transmit light within a first wavelength range and reflect light within a second wavelength range; anda detector configured to detect a signal based on an interference between the reference beam and a portion of the sample beam reflected from the sample.2. (canceled)3. The system of claim 1 , further comprising a second partial mirror positioned across at least a portion of the second aperture claim 1 , wherein the second partial mirror is configured to transmit light within the first wavelength range and reflect light within the second wavelength range.4. The system of claim 1 , wherein the first partial mirror is positioned across at least a portion of each of the first and second apertures.5. The system of claim 1 , ...

TOMOGRAPHIC IMAGE CAPTURING DEVICE

The tomographic image capturing device of the present invention includes a tomographic image capturing means that scans measurement light on a subject's eye fundus (E) to capture tomographic images of the subject's eye fundus and an image processing means that compresses a picture of the captured tomographic images in a scan direction to generate a new tomographic picture. The tomographic image capturing means performs scan at a second scan pitch (P) narrower than a first scan pitch (P) to capture the tomographic images of the subject's eye fundus. The image processing means compresses the picture (B) of the tomographic images captured at the second scan pitch (P) in the scan direction to generate the new tomographic picture (B). The measurement width in the scan direction of the new tomographic picture (B) is a width of a picture corresponding to a measurement width in the scan direction of a tomographic picture (Bn (n=1 to 10)) obtained by scan at the first scan pitch (P). 1. A tomographic image capturing device comprising:a tomographic image capturing means that scans measurement light on a subject's eye fundus to capture tomographic images of the subject's eye fundus; andan image processing means that compresses a picture of the captured tomographic images in a scan direction to generate a new tomographic picture.2. The tomographic image capturing device as recited in claim 1 , whereinthe tomographic image capturing means performs scan at a second scan pitch narrower than a first scan pitch to capture the tomographic images of the subject's eye fundus,the image processing means compresses the picture of the tomographic images captured at the second scan pitch in the scan direction to generate the new tomographic picture, anda measurement width in the scan direction of the new tomographic picture is a width of a picture corresponding to a measurement width in the scan direction of a tomographic picture obtained by scan at the first scan pitch.3. The tomographic ...

Systems and methods for detecting blink inhibition as a marker of engagement and perceived stimulus salience

The present systems and methods provide a mechanism to assess viewer behavior, features of stimuli, and the interaction between viewer behavior and stimuli. The systems and methods described herein for quantifying blink response and blink inhibition provide moment-by-moments measurements of viewer engagement by measuring what is or is not engaging enough to warrant viewers' inhibition of blinking. The present disclosure describes measures of visual scanning, eye movements, blink data, and blink timing data to derive a measure of how engaged a person is with what he or she is looking at. Blink-related data as a measure of viewer engagement provides a mechanism for determining the most engaging spatial and temporal aspects of a stimulus.

SYSTEMS AND METHODS FOR IMPROVED ANTERIOR SEGMENT OCT IMAGING

Various methods and systems for improved anterior segment optical coherence tomography (OCT) imaging are described. One example method includes collecting a set of OCT data of the cornea of the eye; segmenting the set of OCT data to identify one or more corneal layers; fitting a two-dimensional model of corneal surfaces to the one or more corneal layers; determining motion-correction parameters by minimizing error between the one or more corneal layers and the two-dimensional model of the corneal surfaces; and creating a motion-corrected corneal image dataset from the set of OCT data using the motion-correction parameters. The motion-corrected corneal image dataset can be used to create a model of the anterior and/or posterior surfaces of the cornea. The model of the cornea is used to generate high density and motion-artifact free epithelial thickness maps, which are used for identifying or quantifying pathology such as keratoconus. 1. A method of motion correction in corneal image data of an eye using an optical coherence tomography (OCT) system , said method comprising:collecting a set of OCT data of the cornea of the eye using the OCT system;segmenting the set of OCT data to identify one or more corneal layers;fitting a two-dimensional model of corneal surfaces to the one or more corneal layers;determining motion-correction parameters by minimizing error between the one or more corneal layers and the two-dimensional model of the corneal surfaces;creating a motion-corrected corneal image dataset from the set of OCT data using the motion-correction parameters; andstoring or displaying the motion-corrected corneal image dataset or information derived from the motion-corrected corneal image dataset.2. The method as recited in claim 1 , wherein the set of OCT data consists of B-scans over a series of transverse locations on the cornea of the eye.3. The method as described in claim 1 , wherein the set of OCT data includes one or both of axial and transverse eye motion ...

ACQUISITION AND ANALYSIS TECHNIQUES FOR IMPROVED OUTCOMES IN OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY

Methods for improved acquisition and processing of optical coherence tomography (OCT) angiography data are presented. One embodiment involves improving the acquisition of the data by evaluating the quality of different portions of the data to identify sections having non-uniform acquisition parameters or non-uniformities due to opacities in the eye such as floaters. The identified sections can then be brought to the attention of the user or automatically reacquired. In another embodiment, segmentation of layers in the retina includes both structural and flow information derived from motion contrast processing. In a further embodiment, the health of the eye is evaluating by comparing a metric reflecting the density of vessels at a particular location in the eye determined by OCT angiography to a database of values calculated on normal eyes. 118-. (canceled)19. A method for acquiring wide-field optical coherence tomography (OCT) angiography image data of an eye using an OCT system having an adjustable refractive correction , comprising:acquiring a first OCT angiography dataset with the OCT system at a first refractive correction over a first region of the eye;analyzing the curvature of the eye in the first dataset near an edge of the first region;acquiring a second OCT dataset with the OCT system at a second refractive correction value over a second region of the eye, said second region at least partially overlapping the edge of the first region and wherein, said second refractive correction value is based on the results of the analysis of the curvature of the eye,generating a single image of the eye from the first and second datasets; andstoring or displaying the generated image or a further analysis thereof.20. The method as recited in claim 19 , further comprising repeating the acquiring and analyzing steps for a plurality of partially overlapping regions wherein the curvature near an edge of the most recently acquired OCT data set is analyzed and the analyzed ...

Vision Screening Apparatus with a Visual Acuity Protocol Compliance Feature and an Associated Method of Vision Screening

A vision screening apparatus includes first and second display units, a processor, and instructions which are executable by the processor. The instructions, when executed by the processor, cause the apparatus to 1) carry out a photorefraction test of a subject, 2) estimate the subject's visual acuity based on the photorefraction test, 3) present the subject with a visual acuity check optotype for an interval of time, and 4) monitor for noncompliance with a visual acuity check protocol during at least part of the time interval. 1. A vision screening apparatus , comprising:a first display unit;a second display unit;a processor; and carry out a photorefraction test of a subject;', "estimate the subject's visual acuity based on the photorefraction test;", 'present the subject with a visual acuity check optotype for an interval of time;', 'monitor for noncompliance with a visual acuity check protocol during at least part of the time interval; and', 'if a noncompliance is identified, issue a notification., 'instructions which, when executed by the processor cause the apparatus to2. The apparatus of wherein the instructions are adapted claim 1 , in response to identification of noncompliance claim 1 , to cause the apparatus to:discontinue presenting the subject with the visual acuity check optotype and;subsequently perform the presenting and monitoring actions without first repeating the actions of carrying out and estimating actions.3. The apparatus of wherein the noncompliance monitored for is at least one of A) the subject's use of more than one eye to discern the optotype claim 1 , and B) the subject squinting to discern the optotype.4. The apparatus of wherein the instructions cause the apparatus to identify the subject's use of more than one eye by detecting more than one pupil in an image claim 3 , and the instructions cause the apparatus to identify squinting by detecting an irregularity in the image or in a different image.5. The apparatus of wherein the ...

SLIT-LAMP MICROSCOPE AND OPHTHALMIC SYSTEM

A slit lamp microscope of some embodiment examples includes an illumination system, first photographing system, first movement mechanism, and controller. The illumination system includes a slit forming unit that forms a slit for generating slit light and projects the slit light onto an anterior segment of a subject's eye from a first direction. The first photographing system photographs the anterior segment onto which the slit light is being projected, from a second direction different from the first direction. The first movement mechanism moves a movable portion that includes at least the slit forming unit. The controller performs a first control for the first movement mechanism to move the movable portion and a second control for the first photographing system to photograph the anterior segment a plurality of times in parallel with each other. 1. A slit lamp microscope comprising:an illumination system that includes a slit forming unit configured to form a slit for generating slit light from light output from a light source, and is configured to project the slit light onto an anterior segment of a subject's eye from a first direction;a first photographing system configured to photograph the anterior segment onto which the slit light is being projected, from a second direction different from the first direction;a first movement mechanism configured to be capable of moving a movable portion that includes at least the slit forming unit of the illumination system; anda controller configured to perform a first control for the first movement mechanism to move the movable portion and a second control for the first photographing system to photograph the anterior segment a plurality of times in parallel with each other.2. The slit lamp microscope of claim 1 , wherein the controller performs the first control to move the movable portion in a width direction of the slit.3. The slit lamp microscope of claim 1 , further comprising a second photographing system configured to ...

OPHTHALMIC EXAMINATION AND DISEASE MANAGEMENT WITH MULTIPLE ILLUMINATION MODALITIES

Imaging various regions of the eye is important for both clinical diagnostic and treatment purposes as well as for scientific research. Diagnosis of a number of clinical conditions relies on imaging of the various tissues of the eye. The subject technology describes a method and apparatus for imaging of the back and/or front of the eye using multiple illumination modalities, which permits the collection of one or more of reflectance, spectroscopic, fluorescence, and laser speckle contrast images. 111-. (canceled)12. A disease management system , comprising: an illumination module capable of generating coherent light;', 'a first optical assembly configured to direct the coherent light to a region of interest of a fundus of an eye;', 'an imaging sensor configured to generate image data based on light received from the region of interest; and', 'a second optical assembly configured to direct the light from the region of interest to the imaging sensor; and, 'an ophthalmic imaging device including calculate laser speckle contrast values based on the image data;', 'receive at least first patient-specific data; and', 'generate, based on the laser speckle contrast values and the first patient-specific data, first data for display on a display device, the first data including at least a laser speckle contrast image and the first patient-specific data., 'one or more processors configured to13. The disease management system of claim 12 , further comprising:one or more sensors configured to collect the at least first patient-specific data.14. The disease management system of claim 13 , wherein the one or more sensors include one or more of a blood glucose meter claim 13 , a continuous glucose monitor claim 13 , an infusion pump claim 13 , a weight scale claim 13 , or an exercise sensor.15. The disease management system of claim 12 , wherein the one or more processors are further configured to:analyze the laser speckle contrast values to determine blood vessel information ...

APPARATUS, METHOD, AND PROGRAM FOR PROCESSING IMAGE

A high-resolution image suited to the purpose of a doctor or the like is acquired. The present invention relates to an image processing apparatus including an acquisition unit configured to acquire a tomogram of a subject eye; a first extraction unit configured to extract part of the tomogram acquired by the acquisition unit; an estimating unit configured to estimate a high-frequency component based on a result of extraction by the extraction unit; and a combining unit configured to combine the high-frequency component with the tomogram acquired by the acquisition unit. 1. An image processing apparatus comprising:an acquisition unit configured to acquire a tomogram of a subject eye;a first extraction unit configured to extract part of the tomogram acquired by the acquisition unit;an estimating unit configured to estimate a high-frequency component based on a result of extraction by the extraction unit; anda combining unit configured to combine the high-frequency component with the tomogram acquired by the acquisition unit.2. The image processing apparatus according to claim 1 , wherein the first extraction unit extracts a region for use in diagnosis as part of the tomogram acquired by the acquisition unit.3. The image processing apparatus according to claim 1 , wherein the first extraction unit extracts at least one of a layer boundary and a granular object as part of the tomogram acquired by the acquisition unit.4. The image processing apparatus according to claim 1 , further comprising:a difference acquisition unit configured to acquire a difference between a reference image obtained by scaling up and down the tomogram acquired by the acquisition unit and the tomogram acquired by the acquisition unit,wherein the estimating unit estimates a high-frequency component based on the difference obtained by the difference acquisition unit and the result of extraction.5. The image processing apparatus according to claim 3 , further comprising:an image acquisition unit ...

AUTOMATIC FUNDUS IMAGE CAPTURE SYSTEM

A system automatically captures a fundus image with limited user interaction such that the fundus image has one or more desired characteristics. The system can retrieve at least one image from an image capture device, process the at least one image digitally to generate a processed image, detect at least one point of interest in the processed image, determine that each of the at least one point of interest is representative of a corresponding feature of the eye, and obtain a fundus image of the eye based on the at least one image. 1. A method of automatically capturing a fundus image of an eye , the method comprising:retrieving at least one first image from an image sensor device;processing, using at least one computing device, the at least one first image digitally to generate a processed image;detecting at least one point of interest in the processed image;determining that each of the at least one point of interest is representative of a corresponding feature of the eye; andobtaining the fundus image of the eye based on the at least one first image.2. The method of claim 1 , wherein processing the at least one first image comprises at least one of:downsampling the at least one first image;converting the at least one first image into at least one monochromatic image; andmasking the at least one first image.3. The method of claim 2 , wherein the masking is calculated on an image that is scaled claim 2 , cropped claim 2 , and grayscaled.4. The method of claim 2 , wherein processing the at least one first image further comprises:processing the at least one first image for scaling and calculating absolute values of array element associated with the at least one first image to generate a result, and converting the result to unsigned 8 bit;calculating a mean and standard deviation of the array elements associated with the at least one first image;calculating a slope of the mean; anddetermining the mean, standard deviation, and slope are within a predetermined range.5. ...

VISUAL ACUITY TEST DEVICE AND VISUAL ACUITY TEST SYSTEM

A portable visual acuity examination device comprises a mounting unit that can be mounted in front of eyes either using or not using eyeglasses, a visual target displaying unit that uses an organic EL display panel, a display controlling unit that changes the visual target displayed on the displaying unit, an inputting unit for visual target viewing results, and a transmitting unit for measurement results. The portable visual acuity examination device comprises an optical system that can change the distance at which the visual target virtual image is visible. The portable visual acuity examination device detects whether eyeglasses are used and matches an uncorrected vision acuity examination and a corrected vision acuity examination. The portable visual acuity examination device switches between a C-type visual target and an E-type visual target. With data display, both the right and left display units are enabled. 1. A portable visual acuity test device comprising:a mount arranged to have the portable visual acuity test device worn in front of an eye;a display which displays a visual target for a visual acuity test;a display controller which switches visual targets displayed on the display;an input unit to which a recognition result of the visual target is inputted; anda transmitter which transmits a measurement result.2. The portable visual acuity test device of claim 1 , wherein the display comprises an organic electroluminescence display panel.3. The portable visual acuity test device of claim 1 , further comprising:an optical system which permits adjustment of a distance at which a virtual image of the visual target is seen.4. The portable visual acuity test device of claim 1 , wherein the mount is arranged to have the portable visual acuity test device worn in front of the eye both in an eyeglasses-worn state and in a naked-eye state.5. The portable visual acuity test device of claim 4 , further comprising:a detector which detects whether or not eyeglasses are ...

DETERMINING A REFRACTIVE ERROR OF AN EYE

A method, a device, and a computer program for determining a refractive error of at least one eye of a user are disclosed, as well as a method for producing a spectacles lens for the user. The method includes: displaying at least one symbol on a screen, wherein at least one parameter of the symbol displayed on the screen is changed; detecting eye movement metrics of the eye of the user according to the symbol displayed on the screen; establishing a point in time at which a recognition threshold of the user is revealed for the symbol displayed on the screen from the eye movement metrics of the eye of the user; and determining a value for the refractive error of the eye of the user from the at least one parameter established at the point in time. 1. A method for determining a refractive error of one or both eyes of a user , the method comprising:representing at least one symbol on a visual display unit, wherein at least one parameter of the at least one symbol represented on the visual display unit is varied, and wherein a change in the at least one parameter is represented on the visual display unit;capturing, with a video camera, an eye movement metric of the one or the two eyes of the user based on the at least one symbol represented on the visual display unit while the at least one parameter is varying;establishing, with an evaluation unit, a point in time at which a recognition threshold of the user for the at least one symbol represented on the visual display unit is evident from the eye movement metric of the one or the two eyes of the user; anddetermining a value for the refractive error of the one or the two eyes of the user from the established point in time with the evaluation unit.2. The method as claimed in claim 1 , wherein the at least one parameter of the at least one symbol represented on the visual display unit is varied while the at least one symbol represented on the visual display unit carries out a movement across the visual display unit.3. The ...

MICROVASCULAR ASSESSMENT USING EYE IMAGING DEVICE

A system for capturing one or more eye images includes an eye imaging device having a camera configured to capture the eye images. The system determines a workflow for capturing the eye images using the eye imaging device. The workflow is determined based on a risk score for a given patient. The system performs the workflow on the eye imaging device to capture the eye images, conducts a microvascular assessment based on the captured eye images, and adjusts the risk score based on the microvascular assessment. 1. A system for capturing one or more eye images , the system comprising:an eye imaging device having a camera configured to capture the eye images; and determine a workflow for capturing the eye images using the eye imaging device, the workflow determined based on a risk score for a given patient;', 'perform the workflow on the eye imaging device to capture the eye images;', 'conduct a microvascular assessment based on the captured eye images; and', 'adjust the risk score based on the microvascular assessment., 'a computing device having at least one processor, and a memory storing instructions which, when executed by the at least one processor, cause the system to2. The system of claim 1 , wherein the memory stores further instructions which claim 1 , when executed by the at least one processor claim 1 , cause the system to:adjust the workflow on the eye imaging device based on the microvascular assessment.3. The system of claim 2 , wherein the workflow on the eye imaging device is adjusted to capture different quantities and types of eye images.4. The system of claim 1 , wherein the memory stores further instructions which claim 1 , when executed by the at least one processor claim 1 , cause the system to:adjust the workflow on the eye imaging device based on a disease progress.5. The system of claim 1 , wherein the workflow performed on the eye imaging device captures a single image of a predetermined type based on the risk score for the patient.6. The ...

MAIN MODULE, SYSTEM AND METHOD FOR SELF-EXAMINATION OF A USER'S EYE

A main module for a modular system for self-examination of an eye is provided. The main module has an interface for coupling with at least one other module of the modular system and a processor. The processor is configured to perform at least one eye test algorithm by controlling the at least one other module. 1. A main module for a modular system for self-examination of an eye , the main module comprising:an interface configured to couple with at least one other module of the modular system; and 'perform at least one eye test algorithm by controlling the at least one other module.', 'a processor configured to2. The main module of claim 1 , wherein the main module is a mobile device.3. The main module of claim 1 , wherein the at least one other module is a projector and wherein the processor is configured to control the projector to project an eye test pattern.4. The main module of claim 1 , wherein the processor is configured to perform at least a first and a second eye test algorithm subsequently.5. The main module of claim 4 , wherein the second eye test algorithm is performed based on a result of the first eye test algorithm.6. The main module of claim 1 , further comprising a camera for capturing an image of the eye.7. The main module of claim 1 , further comprising a display configured to display user instructions for performing the at least one eye test algorithm.8. The main module of claim 1 , wherein the at least one other module is a distance sensor for measuring a distance between a screen and a user.9. The main module of claim 1 , wherein the processor is further configured to transmit a result of the eye test algorithm to a remote computer.10. A system for self-examination of an eye claim 1 , comprising: an interface configured to couple with at least one other module of the modular system; and', 'perform at least one eye test algorithm by controlling the at least one other module; and', 'a processor configured to], 'a main module includingat least one ...

DEVICE AND METHOD FOR DETERMINING EYE MOVEMENTS BY TACTILE INTERFACE

An eye-movement determination method includes providing an a touch display and a memory that stores an image that includes a point of interest, wherein the image is a stored image, and repeatedly executing a set of steps. The steps include determining a position of a contact point, locating a corresponding position in an image that is displayed on the touch display, generating a degraded image from the stored image, displaying the degraded image on the touch display, and recording successive positions of the contact point. The contact point is a point at which a user contacts the touch display. The degraded image is substantially identical to the stored image with a clear zone but degrades beyond the clear zone. 110-. (canceled)11. An apparatus for determining eye movement , said apparatus comprising a touch display , a memory , and a processor configured to repeat a set of steps , wherein said set of steps comprises determining a position of a contact point at which a user touches said display , said position being a determined position , locating a corresponding portion in an image that is being displayed on said touch display , generating a degraded image based on a stored image , displaying said degraded image on said touch display , and recording successive positions of said contact point , wherein said degraded image is substantially identical to said stored image within a clear zone thereof , wherein said clear zone includes said determined position and surroundings thereof , wherein said stored image is degraded beyond said clear zone by a peripheral degradation parameter.12. A method comprising determining eye movements , wherein determining eye movements comprises providing an apparatus , executing a set of steps and repeating execution of said set of steps , wherein said apparatus comprises a touch display and a memory that stores an image that includes a point of interest , wherein said image is a stored image , wherein said set of steps comprises ...

Ergonomic refraction station and method for using same

The ergonomic refraction station and procedure of use consists of a phoropter helmet, chair, work table, monitor and electronic circuit, which seeks to perform a refraction test in the conditions most similar to the usual work environment of the examinee, for this it consists of a lightweight phoropter helmet, which adjusts to the size of the user, made of transparent material to allow contact with its surroundings and execute the usual movements of head, neck, eyes and working distance, parameters that are captured by optical, distance and inclination sensors, located on the phoropter helmet or on the flexible and adjustable table with “swan neck” arms, so that once the patient places the phoropter helmet and sits on the chair and table, the sensors send information to a microprocessor that shall recognize the real working conditions of the patient and adapt them to the conditions of the ergonomic refraction station, such as: size of letters, aligned inclinations of head-eye-hand coordination with the vision charts, lighting and thus adequately projecting the reading chart on the table and the characters and graphics that the examinee shall read; It also includes removable multifocal lenses or in a test case with the appropriate coupling, noncircular eyepieces with a greater visual field than the traditional ones for the far, middle and near vision test and ocular covers.

TECHNIQUES FOR PROVIDING COMPUTER ASSISTED EYE EXAMINATIONS

A computer-readable medium includes computer-executable instructions that cause a processing unit of a user device to instruct a user to stand a predetermined distance from the user device, acquire an image of the user, and determine a user interpupillary distance based on the acquired image. The user interpupillary distance indicates a distance between the user's pupils in terms of pixels. The computer-executable instructions further cause the processing unit to determine a current distance between the user and the user device based on the user interpupillary distance, a predetermined interpupillary distance, a width of the acquired image in terms of pixels, and a field of view of the camera. Additionally, the computer-executable instructions cause the processing unit to display the current distance between the user and the user device on a display and display an eye chart when the determined current distance is equal to the predetermined distance. 1. A non-transitory computer-readable medium comprising computer-executable instructions that cause a processing unit of a user device to:instruct a user to stand at a visual acuity testing distance away from the user device, wherein the visual acuity testing distance is a predetermined distance away from the user device for taking a visual acuity examination;acquire an image of the user using a camera;determine a user interpupillary distance based on the acquired image, wherein the user interpupillary distance indicates a distance between the user's pupils in terms of pixels;determine a current distance (d) between the user and the user device based on a width of the acquired image in terms of pixels, a field of view of the camera, and the equation d=(IPD)*f/L, wherein IPD is a predetermined interpupillary distance that is representative of a population of people, f is the focal length of the camera in pixels, and L is the user interpupillary distance in pixels;display the current distance between the user and the user ...

AUTOMATIC OPTOMETRY ANALYSIS SYSTEM FOR CHILDREN

The automatic optometry analysis system for children includes a main control board for obtaining optometry data of a patient, and an upper computer connected with the main control board. The upper machine may carry out processing according to the optometry data obtained from the main control board, generate corresponding preliminary eyeglass prescription data, correct the preliminary eyeglass prescription data based on collected preset patient information, and generate a final eyeglass prescription suitable for the patient; wherein correction of the preliminary eyeglass prescription data based on the collected preset patient information includes the use of age-related correction coefficient to correct the preliminary eyeglass prescription data. 1. An automatic optometry analysis system for children , comprising a main control board for obtaining optometry data of a patient , and an upper computer connected with the main control board; wherein the upper machine carries out processing according to the optometry data obtained from the main control board , generates a corresponding preliminary eyeglass prescription data , corrects the preliminary eyeglass prescription data based on collected preset patient information , and generates a final eyeglass prescription suitable for the patient; and wherein correction of the preliminary eyeglass prescription data based on the collected preset patient information comprises the use of age-related correction coefficient to correct the preliminary eyeglass prescription data.2. The automatic optometry analysis system for children as claimed in claim 1 , wherein the main control board uses a field-programmable gate array (FPGA) unit as a central processing core; wherein the FPGA unit is connected with a USB interface through a USB interface control unit and connected with the upper computer through the USB interface claim 1 , and the FPGA unit is connected with an optical system through an IO interface and connected with a motion ...

COMPUTERIZED REFRACTION AND ASTIGMATISM DETERMINATION

The present disclosure relates generally to systems and methods for determining the refractive error of a patient, more particularly determining the patient's refractive error by using a computerized screen, and providing a prescription for the patient's preferred type of corrective lenses. In a general embodiment, the present disclosure provides a method for determining a corrective lenses prescription of a patient. The method includes, separately, for each eye of the patient, determining an astigmatism prescription for the patient via a computerized screen and without the use of a refractor lens assembly, including instructing the patient to move a known, fixed distance away from a computerized screen and testing for a cylinder component by sequentially presenting at least two cylinder diagrams to the patient via the computerized screen and enabling the patient to select at least one input per cylinder diagram, where those inputs correspond to cylinder measurements for determining the prescription. 1: A method for determining a corrective lenses prescription for a patient comprising , separately , for each eye of the patient:instructing the patient to move a known, fixed distance away from a computerized screen; anddetermining an astigmatism prescription for the patient via the computerized screen and without the use of a refractor lens assembly, wherein determining the astigmatism prescription for the patient comprises testing for a cylinder component by sequentially presenting at least two cylinder diagrams to the patient via the computerized screen and enabling the patient to select at least one input per cylinder diagram, wherein the at least one input per cylinder diagram corresponds to a cylinder measurement used to determine the corrective lenses prescription for the patient.2: The method according to claim 1 , wherein the computerized screen is embedded in a kiosk.3: The method according to claim 1 , the method further comprising determining the known ...

SYSTEMS AND METHODS FOR DETECTING BLINK INHIBITION AS A MARKER OF ENGAGEMENT AND PERCEIVED STIMULUS SALIENCE

The present systems and methods provide a mechanism to assess viewer behavior, features of stimuli, and the interaction between viewer behavior and stimuli. The systems and methods described herein for quantifying blink response and blink inhibition provide moment-by-moments measurements of viewer engagement by measuring what is or is not engaging enough to warrant viewers' inhibition of blinking. The present disclosure describes measures of visual scanning, eye movements, blink data, and blink timing data to derive a measure of how engaged a person is with what he or she is looking at. Blink-related data as a measure of viewer engagement provides a mechanism for determining the most engaging spatial and temporal aspects of a stimulus. 1. (canceled)2. A method for assessing the risk of a mental condition in an individual using an eye monitoring device , comprising the steps of:receiving blink data indicative of the individual's blink responses to a dynamic visual stimulus displayed to the individual, wherein the blink data is collected via the eye monitoring device;synchronizing, via software executing on a processor, the received blink data with the dynamic visual stimulus;identifying, via software executing on the processor, a pattern of blink inhibition in the synchronized blink data;retrieving, via software executing on the processor, event data related to the dynamic visual stimulus from a database; andcomparing, via software executing on the processor, a parameter of the pattern of blink inhibition in the synchronized blink data with a parameter of the event data related to the dynamic visual stimulus to determine at least one delta parameter, wherein the at least one delta parameter indicates a likelihood that the individual has a mental disorder.3. The method of claim 2 , wherein the parameter of the event data comprises a predetermined time-stamped event.4. The method of claim 2 , wherein the parameter of the event data comprises a time value.5. The method ...

VITAL STAIN VISUALIZATION IN OPHTHALMIC SURGICAL PROCEDURES AND ASSOCIATED DEVICES, SYSTEMS, AND METHODS

A method of imaging in an ophthalmic surgical procedure can include determining an excitation wavelength of light associated with a vital stain; transmitting light having the excitation wavelength; determining an emission wavelength of light associated with the vital stain; filtering light using a first optical element to allow transmission of light having the emission wavelength and to block light having the excitation wavelength. An ophthalmic surgical imaging system can include a light source, one or more optical elements, an image sensor, a computing device, and/or a display device to visualize target biological tissue stained with a fluorescent vital stain. A method of imaging in an ophthalmic surgical procedure can include determining a wavelength of light that increases the visual contrast of a vital stain; transmitting light having the determined wavelength; and receiving a reflection of the transmitted light such that target biological tissue stained by the vital stain is accentuated. 1. A method of imaging in an ophthalmic surgical procedure , comprising:determining an excitation wavelength of light associated with a vital stain disposed in a surgical field;transmitting light having the excitation wavelength to the surgical field;determining an emission wavelength of light associated with the vital stain;filtering light from the surgical field using a first optical element to allow transmission of light having the emission wavelength and to block transmission of light having the excitation wavelength.2. The method of claim 1 , further comprising:intravitreally injecting the vital stain to stain a target biological tissue in the surgical field.3. The method of claim 1 , further comprising:intravenously delivering the vital stain to a target biological tissue in the surgical field.4. The method of claim 1 , further comprising:delivering the vital stain to the surgical field such that the vital stain is infused into a target biological tissue.5. The method of ...

OPHTHALMIC ANALYSIS APPARATUS AND OPHTHALMIC ANALYSIS PROGRAM

An ophthalmic analysis apparatus is the ophthalmic analysis apparatus for obtaining analysis results of tomography images of a subject eye acquired at different dates by ophthalmic optical coherence tomography and outputting statistical information formed based on time-series data of the analysis results, and includes instruction receiving means for receiving selection instructions to select an analytical region on a subject eye from an examiner, and control means for respectively acquiring analysis results in the analytical region selected by the instruction receiving means with respect to tomography images acquired at the different dates and outputting the statistical information. 1. An ophthalmic analysis apparatus comprising:a processor; and an obtaining unit configured to obtain analysis results of tomography images of a subject eye acquired at different dates by ophthalmic optical coherence tomography;', 'an instruction receiving unit configured to receive, from an examiner, selection instructions to select an analytical region on the eye; and', 'a generating unit configured to respectively acquire analysis results in the analytical region selected by the instruction receiving unit with respect to tomography images acquired at the different dates and generate statistical information formed based on time-series data of the acquired analysis result; and', 'an output unit configured to output the statistical information., 'memory for storing computer readable instructions, when executed by the processor, causing the ophthalmic analysis apparatus to function as2. The ophthalmic analysis apparatus according to claim 1 , wherein the instruction receiving unit receives claim 1 , from the examiner claim 1 , selection instructions for a two-dimensional image at an examination date at which an analysis result is acquired.3. The ophthalmic analysis apparatus according to claim 2 , wherein the two-dimensional image includes at least any of a tomography image claim 2 , a ...

DEVICE FOR SUPPORTING AN IMAGE-CAPTURING APPARATUS FOR MEDICAL EXAMINATION AND METHOD

A device for supporting an image-capturing apparatus for recording ophthalmologic images and method for recording ophthalmologic images, which allows obtaining and recording images of the retina without need for auxiliary personnel, allowing in turn the live transmission of ophthalmological examination by the provision of an image-capturing apparatus arranged between the eyes of professional and the patient. 1. A device for supporting an image-capturing apparatus for medical examination and recording images of at least part of the body of a patient under examination , the device comprising:at least a helmet adapted to be affixed to the head of an examiner with the helmet being provided with at least an arm extending from and beyond the helmet, said arm having a distal end and at least one support for at least an image-capturing apparatus is connected to the distal end of the arm.2. A device according to claim 1 , wherein said support is connected to said arm via an adapter.3. A device according to claim 2 , wherein said arm comprises an arm selected from the group consisting of flexible arm claim 2 , robotic arm claim 2 , articulated arms or a combination thereof.4. A device according to claim 1 , wherein said adaptable helmet comprises two harnesses that surround the head of the examiner and a base on which one end of said flexible arm is mounted.5. A device according to claim 1 , wherein said image-capturing apparatus is a smart cellular phone.6. A device according to claim 1 , wherein said image-capturing apparatus is a wide-angle camera.7. A device according to claim 6 , wherein said wide-angle camera is provided with an external source of light.8. A device according to claim 1 , wherein said image-capturing apparatus is connected to a display screen through a WiFi connection or Bluetooth.9. A device according to claim 1 , wherein said image-capturing apparatus is connected to a display screen through a HDMI cable.10. Method for recording images during medical ...

SYSTEMS AND METHODS FOR EVALUATING HUMAN EYE TRACKING

Systems and methods are disclosed for evaluating human eye tracking. One method includes receiving data representing the location of and/or information tracked by an individual's eye or eyes before, during, or after the individual performs a task; identifying a temporal phase or a biomechanical phase of the task performed by the individual; identifying a visual cue in the identified temporal phase or biomechanical phase; and scoring the tracking of the individual's eye or eyes by comparing the data to the visual cue. 1. A method for evaluating human eye tracking , the method including:receiving data representing the location of and/or information tracked by an individual's eye or eyes before, during, or after the individual performs a task;identifying a temporal phase or a biomechanical phase of the task performed by the individual;identifying a visual cue in the identified temporal phase or biomechanical phase; andscoring the tracking of the individual's eye or eyes by comparing the data to the visual cue.2. The method of claim 1 , wherein the data is one or more of: image data of the individual's eye or eyes claim 1 , coordinate data of the location of the individual's eye or eyes claim 1 , and coordinate data of a location on which the individual's eye or eyes were focused.3. The method of claim 1 , wherein the data is received claim 1 , either locally or over a network claim 1 , from a wearable eye tracker configured to obtain the data by imaging the individual's eye or eyes.4. The method of claim 1 , further comprising:determining a target range associated with the visual cue, the target range defining an ideal viewing area around the visual cue; andscoring the tracking of the individual's eye or eyes by comparing the tracking to the determined target range.5. The method of claim 1 , further comprising:identifying movement of the identified visual cue, the identified movement including a set of coordinates of the visual cue at each of a plurality of points in ...

COMPUTERIZED TESTING AND DETERMINATION OF A VISUAL FIELD OF A PATIENT

The present disclosure relates generally to systems and method for testing and determining corrective lens prescription for a patient. In an example embodiment, a method includes using a hand-portable first electronic device, a second electronic device with a computerized screen, and a server to conduct a vision test for a person. The vision test includes determining, an axis prescription, a cylinder prescription, and a sphere prescription for each eye of the person. A corrective lens prescription is provided for the person based, at least in part, on the determined axis, cylinder, and sphere prescription for each eye of the person. 1. A method for determining a corrective lenses prescription for a person by performing a vision test without the use of a refractor lens assembly using a hand-portable first electronic device , a second electronic device that is associated with a computerized screen , and a server , the method comprising:receiving, in the server, vision information associated with the person, said vision information including at least one of a previous corrective lens prescription of the person, a date of birth of the person, or an age of the person;specifying, via at least one of the hand-portable first electronic device or the second electronic device, a distance for the person to be positioned away from the computerized screen;enabling, via the server, the person to use the hand-portable first electronic device to interact with the second electronic device to perform the vision test, the first and the second electronic devices being separate from each other and each separately communicatively coupled to the server;receiving, in the server, data corresponding to inputs submitted by the person using the hand-portable first electronic device in response to the vision test displayed, at least in part, on the computerized screen of the second electronic device;determining an axis prescription, a cylinder prescription, and a sphere prescription for each ...

SYSTEMS AND METHODS FOR DETECTING BLINK INHIBITION AS A MARKER OF ENGAGEMENT AND PERCEIVED STIMULUS SALIENCE

The present systems and methods provide a mechanism to assess viewer behavior, features of stimuli, and the interaction between viewer behavior and stimuli. The systems and methods described herein for quantifying blink response and blink inhibition provide moment-by-moments measurements of viewer engagement by measuring what is or is not engaging enough to warrant viewers' inhibition of blinking. The present disclosure describes measures of visual scanning, eye movements, blink data, and blink timing data to derive a measure of how engaged a person is with what he or she is looking at. Blink-related data as a measure of viewer engagement provides a mechanism for determining the most engaging spatial and temporal aspects of a stimulus. 1. A method for determining a measure of engagement by an individual with respect to a stimulus , comprising the steps of:receiving blink data indicative of the individual's blink responses to the stimulus;synchronizing, via software executing on a processor, the received blink data with the stimulus;identifying, via software executing on the processor, a pattern of blink inhibition in the synchronized blink data; andcomparing, via software executing on the processor, the pattern of blink inhibition in the synchronized blink data with the stimulus to identify a portion of the stimulus contemporaneous with the pattern of blink inhibition,whereby the pattern of blink inhibition indicates a marker of engagement by the individual with the contemporaneous portion of the stimulus.2. The method of claim 1 , further comprising the steps of:receiving eye-movement data indicative of the individual's eye movements with respect to the stimulus;determining, via software executing on the processor, from the eye-movement data a plurality of fixation locations with respect to the stimulus; andcomparing, via software executing on the processor, the plurality of fixation locations with the stimulus at the contemporaneous portion of the stimulus.3. The ...

SYSTEMS AND METHODS FOR DISPLAYING OBJECTS ON A SCREEN AT A DESIRED VISUAL ANGLE

A server in communication with a first device capable of receiving input from a camera attached to the first device, and a second device capable of displaying output, is provided. The server is configured to receive, from the first device, data relating to characteristics of the camera and characteristics of an image obtained by the camera of a screen of the second device; determine a screen pixel length of the screen; and provide instructions to the second device to display on the screen an object at a desired visual angle in response to the data received from the second device and the screen pixel length, while the first device is positioned at an arbitrary distance from the screen. 1. A method comprising: detecting an indication of a comparison indicating whether one or more medications identified in the clinical information were utilized by the patients as prescribed by at least one health care provider; and', 'generating, via a processor, a user interface comprising visible indicia indicating corresponding medications prescribed to respective patients and respective statuses of the corresponding medications, the statuses are designated in response to determining that one or more respective items of the clinical information is newly received from one of the different sources or based in part on the comparison indicating whether the medications were utilized by the patients as prescribed., 'automatically receiving one or more items of clinical information, corresponding to one or more respective patients, from a plurality of different sources;'}2. The method of claim 1 , wherein the indication comprises detection of input by a user indicating whether the patients utilized the medications as prescribed.3. The method of claim 1 , wherein prior to generating the user interface claim 1 , the method further comprises:detecting input of one or more items of clinical data corresponding to one or more of the patients, the input being specified by a user, andwherein ...

MEDICAL IMAGING APPARATUS AND METHOD FOR THE IMAGING OF A LIGHT-SENSITIVE OBJECT, SUCH AS BIOLOGICAL TISSUE

A medical imaging apparatus () and method for imaging a light-sensitive object (), such as tissue () of the eye (), displays the object () in spectral bands () of the visible light range () in which the object is sensitive and cannot be illuminated. The apparatus () has a camera () for capturing input images () in which a spectral signature () of the object is represented by an input set () of spectral bands (). The apparatus generates output images () in which the spectral signature () in the visible light range () is represented by an output set () of spectral bands (). Replacing at least one input-only spectral band () in the input set () by at least one output-only spectral band () in the output set () enables capture of input images () in spectral bands () where the object () has less sensitivity, such as in the non-visible light-range (), and display of the object () in spectral bands () where the object would be too sensitive for illumination (). 1123361. A medical imaging apparatus () for the imaging of a light-sensitive object () , such as biological tissue () , the object having a spectral signature () , the medical imaging apparatus () comprising:{'b': 8', '10', '36', '2', '15', '16, 'a camera () for capturing input images (), the spectral signature () of the object () being represented in the input images by an input set () of spectral bands (),'}{'b': 20', '22, 'an output interface () for transmitting output images (),'}{'b': 22', '60', '37', '29', '30, 'wherein, in the output images (), the spectral signature () in the visible light range () is represented by an output set () of spectral bands (),'}{'b': 38', '15', '39', '29, 'wherein at least one input-only spectral band () in the input set () is replaced by at least one output-only spectral band () in the output set (),'}{'b': '1', 'the medical imaging apparatus () further comprising{'b': 54', '56', '15', '29, 'a storage member (), in which calibration data () are stored for mapping the input set () ...

ENHANCED VESSEL CHARACTERIZATION IN OPTICAL COHERENCE TOMOGRAOGPHY ANGIOGRAPHY

Systems and methods to improve the visualization of vasculature in OCT angiography data are presented. In one embodiment, vessels having a particular orientation relative to one or more reference surfaces are highlighted. In another embodiment, the path of individual vessels can be analyzed to determine how many or what layers the vessels traverse. In another embodiment, regions which are typically not vascularized are analyzed for the presence of vessels. Techniques to minimize the impact of shadow artifacts are also presented and can be applied to any of the visualization approaches for further enhancement. 1. A method for analyzing optical coherence tomography (OCT) image data , said method comprising:collecting OCT image data over a plurality of transverse locations of an eye;processing the data to resolve motion contrast in the data;using the motion contrast information to identify one or more vessels;processing the data to identify one or more reference surfaces within the tissue;analyzing the orientation of the one or more vessels with respect to the one or more reference surfaces;identifying vessels of interest based on their orientation with respect to the one or more reference surfaces; andstoring or displaying the vessels of interest.2. A method as recited in claim 1 , in which the analyzing step involves determining a metric between the one or more vessels and the one or more surfaces.3. A method as recited in claim 2 , further comprising displaying the metric or a visual representation of the metric.4. A method as recited in claim 1 , further comprising reducing the impact of decorrelation tails or shadow artifacts on the vessels prior to the analyzing step.5. A method as recited in claim 1 , in which the vessels of interest are displayed in a color coded en face image.6. A method as recited in claim 1 , further comprising identifying regions of interest containing a plurality of vessels based on the orientation information.7. A method as recited in ...

SYSTEMS AND METHODS FOR IMPROVED EASE AND ACCURACY OF GAZE TRACKING

Methods for improving gaze tracking are presented. These methods eliminate the need for a separate initial calibration step to determine whether the subject is properly centrally fixated during testing. In one embodiment, whether the subject is centrally fixated is determined by identifying inlier and outlier gaze descriptors; the inliers are assumed to be associated with central fixation. This reduces the total time required for testing. These methods also improve the accuracy of gaze tracking during testing without the need for individual subject calibration. Instead, a database of reference eyes is used. The subject's eye can be compared to the reference eyes, and the mapping function for one or more reference matches can be used to estimate the subject's gaze direction. In another embodiment, previous calibration data from the same subject can be used to determine whether the subject is properly centrally fixated and/or the direction of the subject's gaze. 1. A method for performing a visual field test on a subject wherein the subject has been instructed to fixate their gaze on a specified location throughout all or a portion of the test , said method comprising:displaying a series of test stimuli to the subject;collecting responses to the stimuli from the subject;analyzing the responses to determine the sensitivity of the subject's visual field;collecting information on the gaze of the subject during the displaying of stimuli; anddetermining deviations in the subject's fixation from the specified location using the collected gaze information, wherein characteristics of the subject's gaze associated with fixation on the specified location are determined from the gaze information without a separate initial calibration step.2. A method as recited in claim 1 , wherein the test stimuli are displayed on a screen and the specified location is the center of the screen.3. A method as recited in claim 1 , wherein the characteristics of the subject's gaze associated with ...

Methods of Performing Surgery Using Optical Coherence Tomography (OCT)

Methods are provided including obtaining at least one image of a surgical region of a subject oriented for the surgical procedure using an OCT imaging system. An initial structural view of the surgical region to be used during the surgical procedure is constructed based on the obtained at least one OCT image. Parameters are computed as an end point for assessing an outcome of the surgical procedure using data derived from the OCT image. The surgical procedure is periodically assessed and clinical outcomes are monitored using changes to the OCT-derived initial structural view of the surgical region or changes to the computed at least one clinical parameter. It is determined if the surgical plan needs modification and it is modified during the surgical procedure. Operations repeat until it is determined that no more modifications are needed. 1. A method for performing a surgical procedure using optical coherence tomography (OCT) , the method comprising:orienting a subject for the surgical procedure, wherein orienting comprises imaging a surgical region of the subject that contains a structure having a known orientational asymmetry to obtain an OCT image, testing the OCT image for presence and location of the structure, and confirming correct orientation of the subject using the OCT image of the structure having the known orientational asymmetry;obtaining at least one image of the surgical region of the subject using OCT and constructing an initial structural view of the surgical region;computing at least one clinical parameter relevant as an end point for assessing an outcome of the surgical procedure using data derived from the OCT image;periodically assessing a surgical process and monitoring clinical outcomes related to the surgical procedure using changes to an OCT-derived structural view of the surgical region or the changes to the computed clinical parameters derived from the at least an OCT image;determining if a surgical plan for the surgical procedure needs ...

Electronic device and method of controlling the same

An example method of controlling an electronic device worn by a user includes constructing a user model by training a content feature according to response characteristics of an eye of a user who wears the electronic device, and in response to a content feature stored in the user model being detected from reproduced content during content reproduction, processing the reproduced content based on response characteristics of the eye of the user corresponding to the detected content feature.

SYSTEMS AND METHODS FOR TESTING AND ANALYSIS OF VISUAL ACUITY AND ITS CHANGES

Disclosed herein are system and method for testing and analysis of visual acuity and changes using an acuity model, the acuity model generated based on one or more acuity chart design parameters and candidate acuity parameters calculated using the acuity test data of the subject, the acuity model comprising a chart-specific psychometric function determined using a family of multiple-optotype psychometric functions, and wherein the acuity model is configurable to estimate possibility of obtaining the acuity test data of the subject. 174.-. (canceled)75. A computer-implemented method for evaluating visual acuity of a subject , the system comprising: a digital processing device comprising an operating system configured to perform executable instructions and a memory; and a) obtaining one or more acuity chart design parameters;', 'b) collecting acuity test data of the subject;', 'c) generating one or more sets of candidate acuity parameters based on one or more acuity chart design parameters and the acuity test data of the subject, each of the one or more sets of candidate acuity parameters comprises a rank obtained by analyzing the acuity test data of the subject;', 'd) generating a plurality of candidate acuity charts based on the one or more acuity chart design parameters;', 'e) ranking the plurality of candidate acuity charts based on the rank of each of the one or more sets of candidate acuity parameters; and', 'f) selecting one or more acuity charts from the plurality of candidate acuity charts based on ranks thereof to be presented to the subject for acuity testing., 'a computer program including instructions executable by the digital processing device to create a scoring application comprising a software module76. The system of further comprising claim 75 , subsequent to f) claim 75 , presenting the one or more selected acuity charts to the subject claim 75 , using a digital display.77. The system of further comprising claim 76 , subsequent to f) claim 76 , ...

AERIAL PROJECTION DISPLAY WITH DUAL REFLECTORS

An aerial projection display project an image of an object to a remote location for viewing. The display includes a pair of spherical, parabolic, or elliptical reflectors positioned and oriented relative to one another such that, when the object is placed at one or more predetermined locations, an image of such object is transmitted to the first reflector of said pair, reflected by said first reflector to the second reflector, and refocused by the second reflector as an undistorted 3-D image. In a second embodiment, the reflectors are paraboloid reflectors sharing a common axis of revolution. In another embodiment, the reflectors are elliptical reflectors each having a pair of foci. The foci lie along a common axis, and one of said foci is common to both reflectors. In a third embodiment, the reflectors are spherical reflectors The first reflector reflects a distorted image of the object to the second reflector, which corrects the distorted image from said first reflector to project a substantially undistorted image of the object. 1. An aerial projection display for projecting an image from an object , located at a first location , to a second location , said display comprising:a pair of spherical, parabolic, or elliptical reflectors positioned and oriented relative to one another such that, when the object is placed at one or more predetermined locations, an image of such object is transmitted to a first reflector of said pair, reflected by said first reflector to a second reflector of said pair, and projected by said second reflector as an undistorted 3-D image of the object at the second location.2. The display of claim 1 , wherein said first and second reflectors are paraboloid reflectors sharing a common axis of revolution and having portions which meet along a common plane claim 1 , wherein said reflectors have first and second focal points claim 1 , respectively.3. The display of claim 2 , wherein said predetermined location is said first focal point.4. The ...

EYE IMAGING IN HEAD WORN COMPUTING

Head-worn computers with eye-imaging systems include a camera system positioned in a head-worn computer, wherein the camera system is further positioned to capture eye-image light that originates as reflections from a user's eye, wherein the camera system is further positioned to capture eye-image light as a reflection from a partially reflective surface that is positioned in front of an image display in the head-worn computer, wherein image light, from the image display, is transmitted through the partially reflective surface. A processor is adapted to cause the camera system to capture the eye-image light. The processor is further adapted to cause a comparison of the captured eye-image light with a pre-stored eye image of a known user of the head-worn computer. In the event the comparison confirms the identity of the known user, the user is granted permission to view content to be presented in a display of the head-worn computer. 1. A head-worn computer with an eye-imaging system , comprising:a camera system positioned in a head-worn computer, wherein the camera system is further positioned to capture eye-image light that originates as reflections from an eye of a user, wherein the camera system is further positioned to capture the eye-image light as a reflection from a partially reflective surface that is positioned in front of an image display in the head-worn computer, wherein image light, from the image display, is transmitted through the partially reflective surface; anda processor adapted to cause the camera system to capture the eye-image light,wherein the processor is further adapted to cause a comparison of the captured eye-image light with a pre-stored eye image of a known user of the head-worn computer, andwherein, in the event the comparison confirms the identity of the known user, the user is granted permission to view content to be presented in a display of the head-worn computer.2. The head-worn computer of claim 1 , wherein the camera system is ...

METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR TESTING VISUAL FUNCTION USING VIRTUAL MOBILITY TESTS

Methods, systems, and computer readable media for testing visual function using virtual mobility tests are disclosed. One system includes a processor and a memory. The system is configured for configuring a virtual mobility test for testing visual function of a user; generating the virtual mobility test; and analyzing a user's performance during the virtual mobility test for determining the visual function of the user based on user interaction with objects in the virtual mobility test and using data from body movement detection sensors. 1. A system comprising:at least one processor; and configuring a virtual mobility test for testing visual function of a user;', 'generating the virtual mobility test; and', 'analyzing performance of the user during the virtual mobility test for determining the visual function of the user based on user interaction with objects in the virtual mobility test using data from body movement detection sensors., 'a memory, wherein the system is configured for2. The system of wherein configuring the virtual mobility test includes configuring the virtual mobility test based on the user or a vision condition; orwherein configuring the virtual mobility test includes configuring the virtual mobility test to test a right eye, a left eye, or both eyes.3. The system of wherein analyzing the performance of the user includes evaluating the effectiveness of a gene therapy or related treatment for a vision condition of the user claim 1 , measuring one or more symptoms of a vision condition claim 1 , or diagnosing the user with a vision condition.4. The system of wherein configuring the virtual mobility test includes configuring luminance claim 1 , shadow claim 1 , color claim 1 , contrast claim 1 , gradients of contrast or color on the surface of the objects claim 1 , reflectance or color of borders of the objects claim 1 , or a lighting condition associated with one or more of the objects in the virtual mobility test based on configuration information.5 ...

SYSTEMS AND METHODS FOR TESTING AND ANALYSIS OF VISUAL ACUITY AND ITS CHANGES

Disclosed herein are system and method for testing and analysis of visual acuity and changes using an acuity model, the acuity model generated based on one or more acuity chart design parameters and candidate acuity parameters calculated using the acuity test data of the subject, the acuity model comprising a chart-specific psychometric function determined using a family of multiple-optotype psychometric functions, and wherein the acuity model is configurable to estimate possibility of obtaining the acuity test data of the subject. 1. A computer-implemented method for evaluating visual acuity of a subject , comprising:a) obtaining one or more acuity chart design parameters;b) collecting acuity test data of the subject;c) generating one or more sets of candidate acuity parameters based on the acuity test data of the subject, each of the one or more sets of candidate acuity parameters comprises a rank obtained by analyzing the acuity test data of the subject;d) generating a plurality of candidate acuity charts based on the one or more acuity chart design parameters;e) ranking the plurality of candidate acuity charts based on the rank of each of the one or more sets of candidate acuity parameters; andf) selecting one or more acuity charts from the plurality of candidate acuity charts based on ranks thereof to be presented to the subject for acuity testing.2. The method of comprising claim 1 , subsequent to f) claim 1 , presenting claim 1 , via a digital display claim 1 , the one or more selected acuity charts to the subject.3. The method of comprising claim 2 , subsequent to f) claim 2 , updating the acuity test data with new data collected from the subject using the one or more selected acuity charts.4. The method of comprising claim 1 , repeating until a stopping criterion has been met:presenting the one or more selected acuity charts to the subject using a digital display;updating the acuity test data with new data collected from the subject using the one or more ...

APPARATUS AND METHOD FOR THE NON-INVASIVE DETECTION OF TETRAHYDROCANNABINOL USE AND IMPAIRMENT

The present disclosure is related to a method and apparatus for determining THC usage of a person. The present disclosure describes acquiring a video sequence, of an eye of a patient, the video sequence being a plurality of video frames, determining a frequency spectrum from a pupillary data of the video sequence, and determining, based on the frequency spectrum, the physiological characteristic or drug of use of the patient. In an embodiment, at least one frequency can be probed based on which physiological characteristic is being explored. For example, the physiological characteristic can be Δ#-tetrahydrocannabinol, and the at least one frequency probed can be selected to be specific to Δ#-tetrahydrocannabinol. 1. An apparatus for evaluation of a pupillary hippus of a patient , comprising:a display; and transform experimental data of the pupillary hippus of the patient and reference data via frequency-based transformation,', 'calculate a first parameter of one or more selected parameters based upon the transformed experimental data of the pupillary hippus of the patient,', 'calculate, based upon the transformed reference data, a corresponding first parameter of the one or more selected parameters,', 'generate a metric from the first parameter based upon the experimental data and the corresponding first parameter based upon the reference data, the generated metric being a normalization of the first parameter and the corresponding first parameter,', 'determine whether the generated metric achieves a predetermined threshold, the predetermined threshold being related to a biologically-active target, and', 'display, on the display and based upon the determination, the evaluation of the pupillary hippus of the patient, wherein', {'sup': '9', 'the evaluation of the pupillary hippus of the patient is an identification of Δ-tetrahydrocannabinol as the biologically-active target.'}], 'processing circuitry configured to'}2. The apparatus according to claim 1 , wherein the ...

Ophthalmic adapter for personal electronics

A mobile phone cover having a housing capable of receiving a mobile telephone, wherein the housing comprises a telecentric lens, one or more IR LEDs, one or more visible LEDs, and means for communicating digital information or commands between the mobile phone cover and a mobile phone.

METHOD AND SYSTEM FOR DETERMINING THE REFRACTIVE PROPERTIES OF AN EYE OF A CHILD

The invention is directed to a system for determining the refractive properties of an eye. The system includes a wavefront measurement device for measuring the refractive properties of the eye. The system is configured to have at least one measurement mode assigned to children, wherein the system has an input device configured to switch the system into one of the at least one measurement mode assigned to children. The system is further configured to alter at least one of a group including a default pupillary distance, a default cornea vertex distance, a default position of the wavefront measurement device, a default position and/or direction of a measurement ray of the wavefront measurement device, a default position of a forehead and chin rest assembly of the system and a fixation target when the system is switched into the one of the at least one measurement mode assigned to children. 1. A system for determining the refractive properties of an eye , the system comprising a wavefront measurement device for measuring the refractive properties of the eye , wherein the system is configured to have at , least one measurement mode assigned to children , wherein the system has an input device configured to switch the system into one of the at least one measurement mode assigned to children , and wherein the system is further configured to alter a fixation target , when the system is switched into the one of the at least one measurement mode assigned to children , wherein the system further includes a display device for displaying the fixation target , wherein the display device is configured to show a video comprising the fixation target , wherein the video is a series of images shown with a frequency of at least 20 images per second.2. A system for determining the refractive properties of an eye , the system comprising a wavefront measurement device for measuring the refractive properties of the eye , wherein the system is configured to have at least one measurement ...

SYSTEMS AND METHODS FOR DISPLAYING OBJECTS ON A SCREEN AT A DESIRED VISUAL ANGLE

According to one or more embodiments, the processes and systems disclosed allow for displaying objects on a screen at a desired visual angle, and more particularly, in one aspect, to systems and methods for displaying optotypes during an eye examination. 1. A process for conducting an eye examination , the process comprising:obtaining an image of a screen using a camera of a mobile device, the mobile device being proximate to a test subject, and the screen being spaced from the test subject;determining a camera pixel length of the screen in the image;determining a desired screen pixel length of an optotype to be displayed on the screen to produce a desired visual angle for the optotype;displaying the optotype on the screen at the desired visual angle;receiving an indication from the test subject in response to the displayed optotype; anddetermining a diagnosis or a lens prescription for the test subject based at least in part on the received indication.2. The process of claim 1 , wherein the step of obtaining the image of the screen occurs at an arbitrary distance between the screen and the mobile device.3. The process of claim 1 , further comprising pairing the mobile device with a computer associated with the screen.4. The process of claim 1 , further comprising obtaining values for a sensor size and a focal length of the camera.5. The process of claim 4 , further comprising obtaining a ratio of a sensor size to a focal length of the camera.6. The process of claim 1 , further comprising determining a visual angle of the screen prior to the step of determining the desired screen pixel length.7. A process for displaying an object on a screen at a desired visual angle for a user claim 1 , the process comprising:obtaining an image of the screen with a camera of a mobile device, the mobile device being proximate to the user;determining a camera pixel length of the screen in the image;determining a desired screen pixel length of the object to be displayed on the screen ...

SYSTEMS AND METHODS FOR DISPLAYING OBJECTS ON A SCREEN AT A DESIRED VISUAL ANGLE

According to one or more embodiments, the processes and systems disclosed allow for displaying objects on a screen at a desired visual angle, and more particularly, in one aspect, to systems and methods for displaying optotypes during an eye examination. 1. A process for conducting an eye examination , the process comprising:obtaining an image of a screen using a camera of a mobile device, the mobile device being proximate to a test subject, and the screen being spaced from the test subject;determining a camera pixel length of the screen in the image;determining a desired screen pixel length of an optotype to be displayed on the screen to produce a desired visual angle for the optotype;displaying the optotype on the screen at the desired visual angle;receiving an indication from the test subject in response to the displayed optotype; anddetermining a diagnosis or a lens prescription for the test subject based at least in part on the received indication.2. The process of claim 1 , wherein the step of obtaining the image of the screen occurs at an arbitrary distance between the screen and the mobile device.3. The process of claim 1 , further comprising pairing the mobile device with a computer associated with the screen.4. The process of claim 1 , further comprising obtaining values for a sensor size and a focal length of the camera.5. The process of claim 4 , further comprising obtaining a ratio of a sensor size to a focal length of the camera.6. The process of claim 1 , further comprising determining a visual angle of the screen prior to the step of determining the desired screen pixel length.7. A process for displaying an object on a screen at a desired visual angle for a user claim 1 , the process comprising:obtaining an image of the screen with a camera of a mobile device, the mobile device being proximate to the user;determining a camera pixel length of the screen in the image;determining a desired screen pixel length of the object to be displayed on the screen ...

FUNDUS IMAGING APPARATUS

A fundus imaging apparatus includes a scanning optical system, a control circuit, and an image forming unit. The scanning optical system scans a fundus of a subject's eye with light from a light source, and receives return light from the fundus by a light receiver. The control circuit controls the scanning optical system such that a scanning locus is formed by the light in the fundus. The image forming unit forms an image of the fundus based on a light receiving signal from the light receiver and a position of the scanning locus. The control circuit is capable of performing an alignment mode, in which the control circuit controls the scanning optical system to project an alignment indicator for aligning the scanning optical system with the subject's eye on the fundus based on the light from the light source. 1. A fundus imaging apparatus comprising:a scanning optical system configured to scan a fundus of a subject's eye with light from a light source, and receive return light from the fundus by a light receiver;a control circuit configured to control the scanning optical system such that a scanning locus is formed by the light in the fundus; andan image forming unit configured to form an image of the fundus based on a light receiving signal from the light receiver and a position of the scanning locus, whereinoperation modes of the control circuit include a focus mode, in which the control circuit controls the scanning optical system to project a focus indicator for focusing of the scanning optical system with respect to the fundus of the subject's eye on the fundus based on the light from the light source.2. The fundus imaging apparatus according to claim 1 , wherein claim 1 , in the focus mode claim 1 , the control circuit displays an image of the focus indicator formed by the image forming unit on a display.3. The fundus imaging apparatus according to claim 1 , whereinthe scanning optical system includes a lens for focusing,the fundus imaging apparatus further ...

Automated Data Acquisition, Appraisal and Analysis in Noninvasive Rapid Screening of Neuro-Otologic Conditions Using Combination of Subject's Objective Oculomotor Vestibular and Reaction Time Analytic Variables

Ann automated data acquisition, appraisal and analysis in noninvasive rapid screening of neuro-otologic condition using combination of subject's objective oculomotor, vestibular and reaction time analytic variables, comprises the steps of: establishing an OVRT testing protocol for specific neuro-otologic condition which protocol included eye tracking aspects; coupling an eye tracker is coupled to subject; automatically establishing a region of interest for the eye tracker centered on the subject's pupils; conducting the OVRT testing protocol using pre-programmed/automated voice instructions to the subject; confirming that each test is performed within preset parameters including automated eye image evaluation and advising the clinician of testing which is outside of present parameters; and displaying a normalized composite test protocol score (0-1) on graphical progressive background. 1. Automated data acquisition , appraisal and analysis in noninvasive rapid screening of neuro-otologic condition using combination of subject's objective oculomotor , vestibular and reaction time analytic variables , comprising the steps of:Establishing an OVRT testing protocol for specific neuro-otologic condition which protocol included eye tracking aspects;Coupling an eye tracker is coupled to subject;Automatically establishing a region of interest for the eye tracker centered on the subject's pupils;Conducting the OVRT testing protocol; andDisplaying a composite test protocol score.2. The automated data acquisition claim 1 , appraisal and analysis according to wherein the conducting the OVRT testing protocol uses pre-programmed/automated voice instructions to the subject.3. The automated data acquisition claim 2 , appraisal and analysis according to claim 2 , further including the step of confirming that each test is performed within preset parameters including automated eye image evaluation and advising the clinician of testing which is outside of present parameters.4. The ...

METHODS, APPARATUS, AND SYSTEMS FOR OPHTHALMIC TESTING AND MEASUREMENT

Methods, apparatus, and systems for performing an ophthalmic diagnostic test are disclosed. In one aspect, a head-wearable device for administering an ophthalmic test to a subject can comprise a head-wearable frame for mounting the device onto the subject's head, and a light seal configured for coupling to the frame so as to isolate at least one eye of the subject from ambient light when the device is worn by the subject. 1. A head-wearable ophthalmic testing and measurement system comprising:a head-wearable frame;at least one test light source mounted in the head-wearable frame and configured to generate at least one of a stimulus light and a bleaching light;at least one optical system mounted in the head-wearable frame and configured to direct light generated by the at least one test light source onto at least one eye of a test subject; anda movable platform on which the at least one test light source and the at least one optical system are mounted, the movable platform being movable along at least two orthogonal directions and configured to align the at least one test light source relative to a pupil of the at least one eye of the test subject.2. The head-wearable ophthalmic testing and measurement system of claim 1 , further comprising at least one fixation light source configured to generate a fixation light that directs attention of the test subject to the light generated by the at least one test light source.3. The head-wearable ophthalmic testing and measurement system of claim 2 , wherein the at least one fixation light source is configured to be movable to allow bringing the fixation light into focus when viewed by the test subject.4. The head-wearable ophthalmic testing and measurement system of claim 2 , further comprising at least one mechanism mounted onto the head-wearable frame and coupled to the at least one fixation light source claim 2 , wherein the mechanism is configured to move the at least one fixation light source relative to the at least one ...

METHODS, APPARATUS, AND SYSTEMS FOR OPHTHALMIC TESTING AND MEASUREMENT

Methods, apparatus, and systems for performing an ophthalmic diagnostic test are disclosed. In one aspect, a head-wearable device for administering an ophthalmic test to a subject can comprise a head-wearable frame for mounting the device onto the subject's head, and a light seal configured for coupling to the frame so as to isolate at least one eye of the subject from ambient light when the device is worn by the subject.

METHODS, APPARATUS, AND SYSTEMS FOR OPHTHALMIC TESTING AND MEASUREMENT

Methods, apparatus, and systems for performing an ophthalmic diagnostic test are disclosed. In one aspect, a head-wearable device for administering an ophthalmic test to a subject can comprise a head-wearable frame for mounting the device onto the subject's head, and a light seal configured for coupling to the frame so as to isolate at least one eye of the subject from ambient light when the device is worn by the subject. 1. A head-wearable ophthalmic testing and measurement system comprising:a head-wearable frame;at least one test light source mounted in the head-wearable frame and configured to generate at least one of a stimulus light and a bleaching light;at least one optical system mounted in the head-wearable frame and configured to direct light generated by the at least one test light source onto at least one eye of a test subject; anda movable platform on which the at least one test light source and the at least one optical system are mounted, the movable platform being movable along at least two orthogonal directions and configured to align the at least one test light source relative to a pupil of the at least one eye of the test subject.2. The head-wearable ophthalmic testing and measurement system of claim 1 , further comprising at least one fixation light source configured to generate a fixation light that directs attention of the test subject to the light generated by the at least one test light source.3. The head-wearable ophthalmic testing and measurement system of claim 2 , wherein the at least one fixation light source is configured to be movable to allow bringing the fixation light into focus when viewed by the test subject.4. The head-wearable ophthalmic testing and measurement system of claim 2 , further comprising at least one mechanism mounted onto the head-wearable frame and coupled to the at least one fixation light source claim 2 , wherein the mechanism is configured to move the at least one fixation light source relative to the at least one ...

Methods, apparatus, and systems for ophthalmic testing and measurement

Methods, apparatus, and systems for performing an ophthalmic diagnostic test are disclosed. In one aspect, a head-wearable device for administering an ophthalmic test to a subject can comprise a head-wearable frame for mounting the device onto the subject's head, and a light seal configured for coupling to the frame so as to isolate at least one eye of the subject from ambient light when the device is worn by the subject.

METHODS, APPARATUS, AND SYSTEMS FOR OPHTHALMIC TESTING AND MEASUREMENT

Methods, apparatus, and systems for performing an ophthalmic diagnostic test are disclosed. In one aspect, a head-wearable device for administering an ophthalmic test to a subject can comprise a head-wearable frame for mounting the device onto the subject's head, and a light seal configured for coupling to the frame so as to isolate at least one eye of the subject from ambient light when the device is worn by the subject. 1. A head-wearable ophthalmic testing and measurement system comprising:a head-wearable frame;at least one test light source mounted in the head-wearable frame and configured to generate at least one of a stimulus light and a bleaching light;at least one optical system mounted in the head-wearable frame and configured to direct light generated by the at least one test light source onto at least one eye of a test subject; anda movable platform on which the at least one test light source and the at least one optical system are mounted, the movable platform being movable along at least two orthogonal directions and configured to align the at least one test light source relative to a pupil of the at least one eye of the test subject.2. The head-wearable ophthalmic testing and measurement system of claim 1 , further comprising at least one fixation light source configured to generate a fixation light that directs attention of the test subject to the light generated by the at least one test light source.3. The head-wearable ophthalmic testing and measurement system of claim 2 , wherein the at least one fixation light source is configured to be movable to allow bringing the fixation light into focus when viewed by the test subject.4. The head-wearable ophthalmic testing and measurement system of claim 2 , further comprising at least one mechanism mounted onto the head-wearable frame and coupled to the at least one fixation light source claim 2 , wherein the mechanism is configured to move the at least one fixation light source relative to the at least one ...

SYSTEMS AND METHODS FOR DETECTING BLINK INHIBITION AS A MARKER OF ENGAGEMENT AND PERCEIVED STIMULUS SALIENCE

The present systems and methods provide a mechanism to assess viewer behavior, features of stimuli, and the interaction between viewer behavior and stimuli. The systems and methods described herein for quantifying blink response and blink inhibition provide moment-by-moments measurements of viewer engagement by measuring what is or is not engaging enough to warrant viewers' inhibition of blinking. The present disclosure describes measures of visual scanning, eye movements, blink data, and blink timing data to derive a measure of how engaged a person is with what he or she is looking at. Blink-related data as a measure of viewer engagement provides a mechanism for determining the most engaging spatial and temporal aspects of a stimulus. 133-. (canceled)34. A system for assessing the risk of a mental condition in an individual using eye monitoring , comprising:a processor in communication with an eye tracker device;a non-transitory, machine-readable memory device comprising instructions stored thereon that, when executed by the processor, cause the processor to:receive blink data indicative of the blink responses of the individual to a dynamic visual stimulus displayed to the individual:synchronize the received blink data with the dynamic visual stimulus;identify a pattern of blink inhibition in the synchronized blink data; andcompare a parameter of the pattern of blink inhibition in the synchronized blink data with a parameter of event data related to the dynamic visual stimulus to determine at least one delta parameter; anda local display in communication with the processor that, wherein the local display is configured to present the at least one delta parameter in an assessment interface indicative of whether the individual has a mental disorder.35. The system of claim 34 , wherein the parameter of the event data comprises a predetermined time-stamped event retrieved by the processor from a database.36. The system of claim 34 , wherein the parameter of the event ...

METHODS AND KITS FOR ASSESSING NEUROLOGICAL AND OPHTHALMIC FUNCTION AND LOCALIZING NEUROLOGICAL LESIONS

The invention provides methods and kits for detecting, screening, quantifying or localizing the etiology for reduced or impaired cranial nerve function or conduction; localizing a central nervous system lesion; detecting, diagnosing or screening for increased intracranial pressure, pressure or disruption of central nervous system physiology as seen with concussion; or detecting, diagnosing, monitoring progression of or screening for a disease or condition featuring increased intracranial pressure or concussion by tracking eye movement of the subject. The invention also provides methods and kits useful for detecting, screening for or quantitating disconjugate gaze or strabismus, useful for diagnosing a disease characterized by disconjugate gaze or strabismus in a subject, useful for detecting, monitoring progression of or screening for a disease or condition characterized by disconjugate gaze or strabismus in a subject or useful for quantitating the extent of disconjugate gaze or strabismus. Further, the invention provides methods for assessing or quantifying structural and non-structural traumatic brain injury or diagnosing a disease characterized by or featuring structural and non-structural traumatic brain injury. 165-. (canceled)66. A method for detecting , diagnosing or screening for concussion in a subject comprising:a) Tracking eye movement of at least one eye of the subject;b) Analyzing eye movement of at least one eye of the subject;c) Comparing eye movement of at least one eye of the subject to a normal or mean eye movement; and, optionallyd) Calculating a standard deviation or p value for eye movement of at least one eye of the subject as compared to the normal or mean eye movement.67. A method according to wherein eye movement of both eyes of the subject are tracked and analyzed.68. A method according to wherein both x and y coordinates of eye position for one or both eyes of a subject are collected.69. A method according to wherein the eye movement is ...

MEDICAL DEVICES, SYSTEMS, AND METHODS USING EYE GAZE TRACKING FOR STEREO VIEWER

A teleoperational medical system for performing a medical procedure comprises an eye tracking system which includes an image display configured to display an image of a surgical field to a user, at least one right eye tracker configured to measure data about a first gaze point of a right eye of the user, at least one left eye tracker configured to measure data about a second gaze point of a left eye of the user, and at least one processor configured to process the data about the first gaze point and the second gaze point to determine a viewing location in the displayed image at which the first gaze point and the second gaze point of the user are directed. The teleoperational medical system also includes a control unit configured to control at least one function of the teleoperational medical system based upon the determined viewing location. 118-. (canceled)19. A teleoperational medical system for performing a medical procedure , comprising: an image display configured to display an image of a surgical field to a user;', 'at least one right eye tracker configured to measure data about a first gaze point of a right eye of the user;', 'at least one left eye tracker configured to measure data about a second gaze point of a left eye of the user; and', 'at least one processor configured to process the data about the first gaze point and the second gaze point to determine a viewing location in the displayed image at which the first gaze point and the second gaze point of the user are directed; and, 'an eye tracking system includinga control unit configured to control at least one function of the teleoperational medical system based upon the determined viewing location.20. The teleoperational medical system of claim 19 , wherein the image display is a 3D image display configured to display to the user a 3D image of the surgical field.21. The teleoperational medical system of claim 19 , further comprising a surgical instrument claim 19 , wherein the control unit is ...

ELECTRONIC EYE MARKING/REGISTRATION

One embodiment is a method for finding, calculating and electronically marking a reference axis for astigmatism correction/neutralization of a patient eye during a refractive surgery. 1. An apparatus for measuring astigmatic components of a patient eye during a cataract refractive surgery , comprising:a real-time intra-operative wavefront sensor configured to continually sample a first set of wavefronts returned from a patient eye during a first intra-operative time interval, where temporary surgically-induced factors that cause temporary changes to a pre-surgery measured astigmatic component of the patient eye occur during the first intra-operative time interval, where the first set of wavefronts is sampled after the removal of the crystalline lens (aphakic state) and with the real-time intra-operative wavefront sensor configured to output wavefront measurement data characterizing the first set of wavefronts; anda data processor, coupled to the real-time intra-operative wavefront sensor to receive the wavefront measurement data, configured to calculate an aphakic astigmatic component from wavefront data characterizing samples of the first set of wavefronts and to calculate a cornea-alone astigmatic component being the difference of the aphakic astigmatic component and a temporary astigmatic component, where the temporary astigmatic component is a measurement of the temporary astigmatic change caused by the temporary surgically-induced factors, and with the data processor further configured to output the cornea-alone astigmatic component.2. The apparatus of with the data processor further configured to:output the cornea-alone astigmatic component during the refractive surgery.3. The apparatus of further comprising:a display, coupled to the data processor, configured to display the cornea-alone astigmatic component.4. The apparatus of with the data processor further configured to:output the cornea-alone astigmatic component during the refractive surgery when the eye ...

CONTROLLER WITH IMAGING SYSTEM

Controllers for dry eye treatment apparatus and methods are described herein which generally comprise a patch or strip affixed to the skin of the upper and/or lower eyelids to deliver heat to the one or more meibomian glands contained within the underlying skin. The treatment strip or strips include one or more strips configured to adhere to an underlying region of skin in proximity to one or both eyes of a subject such that the one or more strips allow for the subject to blink naturally without restriction from the one or more patches. A controller is in communication with the one or more strips and is programmable to monitor a temperature of the one or more strips to provide a treatment therapy above a threshold temperature of, e.g., 39° C., and below a maximum temperature of, e.g., 48° C., over a treatment period of 12 minutes. 1. A treatment system for determining a condition of a patient , comprising:a controller having a housing configured for connection to one or more heating strips;an imager incorporated into the controller and configured to image an eye and/or eyelid of the patient;wherein the controller is configured to receive the image of the eye and/or eyelid and determine a condition of the eye and/or eyelid.2. The system of further comprising a light for illuminating the eye and/or eyelid.3. The system of further comprising a display along the housing.4. The system of further comprising a visual or auditory indicator along the housing.5. The system of wherein the controller is configured to wirelessly communicate with an external device to receive one or more images of the eye and/or eyelid.6. The system of wherein the controller is configured to track a condition of the eye and/or eyelids over time.7. The system of wherein the controller is configured to compare an image of the eye and/or eyelids with a previously obtained image of the eye and/or eyelids.8. The system of wherein the controller is configured to analyze a condition selected from the ...

OPTICAL MEASURING APPARATUS AND METHOD OF OUTPUTTING LIGHT AND RECEIVING THE LIGHT

An optical measuring apparatus includes a light output device that outputs light so as to cross an anterior chamber of an eyeball of a subject, a light receiving device that receives the light having crossed the anterior chamber, and a positioning device that positions the light output device and the light receiving device at such positions that, when the eyeball is adducted, the light output from the light output device crosses the anterior chamber and is received by the light receiving device. 1. An optical measuring apparatus comprising:a light output device that outputs light so as to cross an anterior chamber of an eyeball of a subject;a light receiving device that receives the light having crossed the anterior chamber; anda positioning device that positions the light output device and the light receiving device at such positions that, when the eyeball is adducted, the light output from the light output device crosses the anterior chamber and is received by the light receiving device.2. The optical measuring apparatus according to claim 1 ,wherein the positioning device positions one of the light output device and the light receiving device disposed on an inner canthus side of the eyeball at a position reached by the one of the light output device and the light receiving device having been pressed into an orbit containing the eyeball.3. The optical measuring apparatus according to claim 1 ,wherein the positioning device positions one of the light output device and the light receiving device disposed on an outer canthus side further to a front side of the eyeball than another of the light output device and the light receiving device disposed on an inner canthus side.4. The optical measuring apparatus according to claim 2 ,wherein the positioning device positions one of the light output device and the light receiving device disposed on an outer canthus side further to a front side of the eyeball than another of the light output device and the light receiving ...

Method and system for cognitive function testing

Cognitive function testing. At least some of example embodiments are methods including performing a cognitive function test on a patient without calibrating pupil position of the patient. The performing may include: causing a visual cue on a computer screen in front of the patient to move in a predetermined pattern; reading frames from an eye camera that captures images of an eye of the patient while the visual cue moves on the computer screen and the patient visually tracks the visual cue; determining pupil position within the frames; correcting offsets between the stimulus data and the pupil position data; translating the pupil position data from a coordinate space of the eye camera to a coordinate space of the stimulus data; and generating a test score being the cumulative distance between the stimulus data and pupil position data for each corresponding point in time.

Dynamic display system and method for customizing a controller in a display system

A method, or corresponding dynamic display system, for customizing a controller of a display system includes presenting a visual stimulus to a subject at at least one known location relative to the subject's eye gaze; measuring brain activity of the subject's left and right brain hemispheres in response to the subject's viewing of the stimulus; processing the measured brain activity to determine a frequency-dependent metric of the measured brain activity; assessing independent cognitive capacities of the subject's left and right brain hemispheres based on the frequency-dependent metric; and adjusting a function of the controller in the display system according to the assessed independent capacities, such as by adjusting the function to change a stimulus load in a visual hemifield according to the brain activity in the contralateral brain hemisphere. Example applications include head-up display (HUD), augmented reality (AR) or virtual reality (VR) display systems, and brain injury assessment systems.

OPEN RETINOSCOPE COUPLABLE TO A SMARTPHONE

The invention relates to a novel open retinoscope comprising: a body () comprising a light source () oriented in the longitudinal direction and a first coupling means () for coupling to a Volk lens () holder in a longitudinally sliding manner; a Volk lens () holder (), coupled in a longitudinally sliding manner to the body (), where the holder () comprises a second longitudinal sliding coupling means () which is complementary to the first longitudinal sliding coupling means () of the body (); and a smartphone adaptor () which can be connected to the body () in a transversely sliding manner. 1. An open retinoscope coupleable to a smartphone comprising:a body comprising a light source oriented in the longitudinal direction and a first coupling means for coupling to a Volk lens in a longitudinally sliding manner,a Volk lens holder including the Volk lens, the holder being coupled in a longitudinally sliding manner to the body, wherein the holder comprises a second longitudinal sliding coupling means which is complementary to the first longitudinal sliding coupling means of the body; anda smartphone adaptor which can be connected to the body in a transversely sliding manner.2. The open retinoscope according to claim 1 , wherein the smartphone adaptor comprises on a first face an adjustable fixing means for a smartphone and on an opposite second face a third transverse sliding coupling means which is complementary to a fourth transverse sliding coupling means of the body.3. The open retinoscope according to claim 2 , wherein the adjustable fixing means of the smartphone adaptor comprises a fixed flange and a transversely adjustable flange claim 2 , such that the transversely adjustable flange moves closer to and away from said fixed flange.4. The open retinoscope according to claim 2 , wherein the body comprises a longitudinal portion incorporating the first coupling means and a transverse portion incorporating the fourth coupling means and the light source.5. The open ...

VIRTUAL REALITY OCULAR EXAMINATION SYSTEM

A virtual reality display system including at least one optical alignment subsystem optically aligned with at least one eye of a subject and at least one virtual reality display device optically aligned with the at least one optical alignment subsystem for displaying to the subject at least one virtual reality object undergoing virtual motion, wherein the virtual motion of the at least one virtual reality object as viewable by the subject is operative for inducing and relaxing accommodation by the at least one eye of the subject. 1. A virtual reality display system comprising:at least one optical alignment subsystem optically aligned with at least one eye of a subject; andat least one virtual reality display device optically aligned with said at least one optical alignment subsystem for providing a virtual reality environment to said subject by displaying to said subject at least one virtual reality object undergoing virtual motion, whereinsaid virtual motion of said at least one virtual reality object as viewable by said subject is operative for inducing and relaxing accommodation by said at least one eye of said subject, and for immersing said subject in said virtual reality environment, thereby enhancing said relaxing of accommodation by said subject.2. An ocular examination system comprising:at least one optical alignment subsystem optically aligned with at least one eye of a subject;at least one virtual reality display device optically aligned with said at least one optical alignment subsystem for providing a virtual reality environment to said subject by displaying to said subject at least one virtual reality object undergoing virtual motion,wherein said virtual motion of said at least one virtual reality object, as viewable by said subject, is operative for inducing and relaxing accommodation by said at least one eye of said subject, and for immersing said subject in said virtual reality environment, thereby enhancing said relaxing of accommodation by said ...

OPHTHALMIC SURGICAL MICROSCOPE

An ophthalmic surgical microscope includes an observation optical system configured to guide observation luminous fluxes for a right eye and a left eye from an observation object to an imaging device, an actuator configured to move a position of the observation optical system in at least a direction intersecting with the observation luminous fluxes, a processor, and a memory storing computer-readable instructions. The computer readable instructions, when executed by the processor, cause the ophthalmic surgical microscope to cause a stereoscopic image display to display an observation image to be observed with a right eye of a user and an observation image to be observed with a left eye of the user, detect a position of the observation object with respect to the observation optical system, and correct a deviation in a relative position of the observation optical system with respect to the observation object. 1. An ophthalmic surgical microscope comprising:an observation optical system configured to guide an observation luminous flux for a right eye and an observation luminous flux for a left eye from an observation object to an imaging device;an actuator configured to move a position of the observation optical system in at least a direction intersecting with the observation luminous flux for the right eye and the observation luminous flux for the left eye;a processor; and cause a stereoscopic image display to display an observation image to be observed with a right eye of a user and an observation image to be observed with a left eye of the user, on the basis of an image signal from the imaging device;', 'detect a position of the observation object with respect to the observation optical system; and', 'correct a deviation in a relative position of the observation optical system with respect to the observation object, by causing the actuator to operate on the basis of a detection result of the position., 'a memory storing computer-readable instructions, wherein the ...

METHODS FOR ANALYZING THE EYE

Systems and methods for imaging an eye are disclosed. The systems and methods may include at least one plenoptic camera. The systems and methods may include an illumination source with a plurality of lights. 1. A method of analyzing an eye of a patient which has been illuminated with a slit-lamp microscope , the slit-lamp microscope including an illumination system and an observation system , the illumination system including a light source and a slit forming device which provides a line of light to illuminate the eye and the observation system including an imaging system including a plenoptic camera configured to receive imaging rays produced by reflection of the line of light from the eye , the method comprising the steps of:storing a plurality of images of the eye imaged by the plenoptic camera while the eye was illuminated with the line of light, each of the stored images having at least one associated slit-lamp microscope characteristic;receiving an image request; andproviding a requested image based on at least one of the plurality of images, the image request, and the at least one associated slit-lamp microscope characteristic of the at least one of the plurality of images.2. The method of claim 1 , wherein the requested image includes the line of light focused on a first portion of a curved structure.3. The method of claim 2 , further comprising the steps of:receiving an image request for a second image having the line of light focused on a second portion of the curved structure, wherein the line of light is displaced in at least one of an x-axis direction and a y-axis direction and in a z-axis direction; andgenerating the second image from at least one of the stored images and the light field data of the at least one stored image.4. The method of claim 1 , further comprising the step of requesting to walk through the stored images sequentially.5. The method of claim 1 , further comprising the steps of:retrieving an image set from a prior examination; ...

OPHTHALMIC DEVICE

An ophthalmic device includes a two-dimensional image acquisition unit that acquires a two-dimensional image by photographing the front of an eye to be examined with a color camera; a three-dimensional image acquisition unit that acquires a three-dimensional image of the eye to be examined by optical coherence tomography; and a correspondence definition data generation unit that generates correspondence definition data in which the position of a predetermined site of the eye to be examined in the three-dimensional image when the predetermined site is photographed as the three-dimensional image is associated with the position of the predetermined site in the two-dimensional image when the predetermined site is photographed as the two-dimensional image. 1. An ophthalmic device comprising:a two-dimensional image acquisition unit configured to acquire a two-dimensional image by photographing the front of an eye to be examined with a color camera;a three-dimensional image acquisition unit configured to acquire a three-dimensional image of the eye to be examined by optical coherence tomography; anda correspondence definition data generation unit configured to generate correspondence definition data in which the position of a predetermined site of the eye to be examined in the three-dimensional image when the predetermined site is photographed as the three-dimensional image is associated with the position of the predetermined site in the two-dimensional image when the predetermined site is photographed as the two-dimensional image.2. The ophthalmic device according to claim 1 , wherein the two-dimensional image acquisition unit is configured toacquire a chart image that is an image obtained by photographing a color chart having a plurality of color patches with the color camera while illuminating the color chart with a white light source,acquire calibration data for converting gradation values in the two-dimensional image into gradation values in a reference color space ...

SYSTEMS, METHODS AND APPARATUS FOR TRACKING CHANGES IN AN OCULAR SCENE

Systems, methods and apparatus are provided through which in some aspects an ocular scene is imaged and changes in the ocular scene relative to a calibration image, are tracked. In one aspect, an imaging instrument includes an eyepiece, a light source operable to project light, an imaging system operable to image an ocular scene; and a processing system operable to receive a set of calibration images, and further operable to capture an image of the imaged ocular scene associated with a calibration image. In another aspect, a method to track changes in an ocular scene includes receiving a set of calibration images, receiving a set of landmarks on each calibration image, capturing a set of images of an ocular scene, associating each captured image with a calibration image, and detecting landmarks on each captured image wherein each detected landmark corresponds to a landmark on the associated calibration image. 1. An imaging instrument comprising:an eyepiece;a light source operable to project light through the eyepiece;an imaging system operable to image an ocular scene through the eyepiece; anda processing system operable to receive a set of one or more calibration images, and further operable to capture an image of the imaged ocular scene associated with a calibration image in the set of calibration images.2. The imaging system of comprising:a sensor operable to image the ocular scene and further operable to transfer the imaged ocular scene to the processing system; anda lens system situated between the sensor and the ocular scene, operable to focus and magnify the imaged ocular scene onto the sensor based on a focus parameter and a magnification parameter3. The imaging system of wherein the lens system comprises:a first lens;a second lens situated between the first lens and the sensor; anda mechanism operable to vary the distance between the first lens and second lens, and further operable to vary the distance between the second lens and the sensor based on the ...