УСТРОЙСТВО И СИСТЕМА МОНИТОРИНГА ГЛАЗА СУБЪЕКТА

Группа изобретений относится к медицине. Устройство для мониторинга уровня боли субъекта по размеру зрачка субъекта, имеющего радужную оболочку и зрачок, содержит: прозрачный носитель для нахождения в контакте с глазом субъекта и фотодатчик, обращенный к глазу субъекта, для приема света, отражаемого от глаза субъекта, и для определения интенсивности принятого света. Фотодатчик расположен на прозрачном носителе и содержит одно из следующего: фотодетекторы, расположенные в форме двумерной матрицы и на расстоянии друг от друга для обеспечения возможности прохождения между ними падающего света для проникновения в глаз субъекта, причем фотодетекторы расположены в рядах фотодетекторов или в концентрических окружностях, по существу покрывающих радужную оболочку и зрачок глаза субъекта; одинарный фотодетектор, покрывающий радужную оболочку и зрачок глаза субъекта. Система содержит: устройство для мониторинга уровня боли субъекта по размеру зрачка субъекта; интерфейс связи для связи с устройством ...

ОДНОВОЛОКОННЫЙ ЭНДОСКОПИЧЕСКИЙ ИЛЛЮМИНАТОР (ЭНДОИЛЛЮМИНАТОР)

Заявленное устройство относится к области осветителей внутренних полостей, используемых в том числе в медицине, офтальмологии. Эндоскопический иллюминатор состоит из осветительного устройства с оптоволоконным лазерным модулем, зонда и узла сопряжения осветительного устройства с зондом. В узле сопряжения последовательно и центрировано друг относительно друга и в непосредственной технологически допустимой близости друг к другу расположены поверхности плоского торца дистального конца первого оптического волокна, диафрагмы, люминофора и плоского торца проксимального конца широкоапертурного второго оптического волокна. При этом размер люминофора не превышает диаметра второго оптического волокна и не менее размеров пятна лазерного луча, проецируемого на поверхность раздела между подложкой и люминофором при работе оптоволоконного лазерного модуля. Технический результат – увеличение эффективности работы одноволоконного эндоскопического иллюминатора .1 н.п. и 15 з.п. ф-лы, 3 ил.

ВИДЕОЗОНД, ИСПОЛЬЗУЮЩИЙ ЭЛЕКТРОСТАТИЧЕСКИЙ ИСПОЛНИТЕЛЬНЫЙ ПРИВОД

САМООСВЕЩАЮЩЕЕ МИКРОХИРУРГИЧЕСКОЕ УСТРОЙСТВО В ВИДЕ КАНЮЛИ

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

ОФТАЛЬМОЛОГИЧЕСКАЯ ЭНДОИЛЛЮМИНАЦИЯ С ИСПОЛЬЗОВАНИЕМ СВЕТА, ГЕНЕРИРУЕМОГО ВОЛОКНОМ

... 1. Офтальмологический эндоиллюминатор, содержащий:по меньшей мере, один источник светового пучка накачки;сцинтилляционное волокно, оптически соединенное, по меньшей мере, с одним источником светового пучка накачки, причем сцинтилляционное волокно выполнено с возможностью приема выхода, по меньшей мере, одного источника светового пучка накачки и генерирования света в диапазоне длин волн, отличном от выхода, по меньшей мере, этого одного источника светового пучка накачки;элемент оптического соединения, оптически соединенный с сцинтилляционным волокном, причем элемент оптического соединения выполнен с возможностью приема света из сцинтилляционного волокна; иоптическое волокно, оптически соединенное с элементом оптического соединения, причем оптическое волокно выполнено с возможностью проведения света в глаз.2. Офтальмологический эндоиллюминатор по п.1, в котором в световой трубке установлен, как, по меньшей мере, один источник светового пучка накачки, так и сцинтилляционное волокно.3. Офтальмологический ...

МИКРОХИРУРГИЧЕСКИЙ ИНСТРУМЕНТ С ПОДСВЕТКОЙ, ВКЛЮЧАЮЩИЙ В СЕБЯ ОПТИЧЕСКОЕ ВОЛОКНО СО СКОШЕННОЙ ТОРЦЕВОЙ ПОВЕРХНОСТЬЮ

... 1. Микрохирургический инструмент с подсветкой, содержащий:микрохирургический инструмент, имеющий дистальную оконечность; иоптическое волокно для подачи светового пучка к операционному полю, причем оптическое волокно включает в себя проксимальный конец для приема светового пучка от источника света и дистальный конец, расположенный вблизи дистальной оконечности микрохирургического инструмента, для излучения светового пучка, причем дистальный конец включает в себя скошенную торцевую поверхность, либо ориентированную в сторону дистальной оконечности микрохирургического инструмента, либо ориентированную в противоположную от него сторону.2. Микрохирургический инструмент по п. 1, в котором скошенная торцевая поверхность делит оптическую ось пополам.3. Микрохирургический инструмент по п. 1, в котором скошенная торцевая поверхность является, по существу, плоской поверхностью.4. Микрохирургический инструмент по п. 1, в котором скошенная торцевая поверхность включает в себя в целом выпуклый контур ...

СПОСОБЫ И ПРИБОР ДЛЯ ФОРМИРОВАНИЯ ОФТАЛЬМОЛОГИЧЕСКИХ УСТРОЙСТВ, СОДЕРЖАЩИХ ФЛУОРЕСЦЕНТНЫЕ ДЕТЕКТОРЫ

... 1. Устройство несущей ставки для офтальмологической линзы, содержащее:передний элемент кольцевой вставки и задний элемент кольцевой вставки, причем передний элемент кольцевой вставки герметично соединен с задним элементом кольцевой вставки с формированием кольцевой несущей вставки, содержащей внутри герметичную полость для компонента;источник энергии внутри герметичной полости для компонента;по меньшей мере первое соединение, по меньшей мере частично размещенное внутри герметичной полости для компонента;электронную схему внутри герметичной полости для компонента; иязычок, выступающий из элемента кольцевой вставки, причем язычок выполнен с возможностью поддерживать компонент для флуоресцентного анализа и по меньшей мере одно электрическое соединение, которое соединяет компонент для флуоресцентного анализа с электронной схемой.2. Несущая вставка для офтальмологической линзы по п. 1, в которой язычок представляет собой сформированную часть переднего элемента кольцевой вставки, ив которой компонент ...

УСТРОЙСТВО И СПОСОБ ОБЛУЧЕНИЯ ГЛАЗА

... 1. Устройство для облучения роговицы (2) глаза (1), включающее в себя, по крайней мере, следующие элементы:- кольцевую деталь (20), которая имеет выполненную концентрически вокруг продольной оси (3) устройства опорную поверхность (28, 30) с целью фиксации устройства на глазу (1),- канал для облучения (26) роговицы (2), находящийся внутри кольцевой детали (20),- причем опорная поверхность (28, 30) для крепления устройства размещается вне канала для облучения (26), отличающееся тем, что устройство далее включает- УФ-излучатель света (23), который в рабочем положении устройства для подачи света в канал для облучения (26) устанавливается внутри кольцевой детали (20).2. Устройство по п. 1, отличающееся тем, что кольцевая деталь (20) имеет базирующий элемент (22) для корпуса (34), в котором устанавливается УФ-излучатель света (23), причем в рабочем положении устройства каждая боковая стенка корпуса (34), если она дистально выступает за пределы кольцевой детали (20), представляет собой продолжение ...

Einrichtung zur Beleuchtung des Auges mit dem Ziel einer visuellen Einschätzung des Zustandes der optischen Medien des eigenen Auges des Beobachters

Die Erfindung gehört zur Medizintechnik. Einrichtung zur Beleuchtung des Auges mit dem Ziel einer visuellen Einschätzung des Zustandes der optischen Medien des eigenen Auges des Beobachters, die ein lichtundurchlässiges und lichtabsorbierendes Gehäuse, eine Lichtquelle, ein zerstreuendes und ein fokussierendes optisches System einschließt, dadurch gekennzeichnet, dass als zerstreuendes System ein Bereich der spiegelnder Kugeloberfläche mit einem Durchmesser von 1 bis 20 mm oder einer Oberfläche, die einen Bereich mit der Krümmung hat, die nah zu sphärischer (Oval, Elipsoid, zum Beispiel eine gerundete und polierte Stirnseite eines Kernes) ist mit einer Krümmung in den erwähnten Grenzen dient, wobei der Durchmesser der Kugel oder die Krümmung der abspiegelnden Oberfläche, die Entfernung zwischen der Lichtquelle und der abspiegelnden Oberfläche, die Entfernung zwischen der abspiegelnden Oberfläche und das Eingangsfenster des fokussierenden Systems so ausgewählt sind, dass die Form und die ...

Adapterbauteil für einen Spaltlampen-Laseraufsatz

Device for measuring intra ocular pressure

Apparatus and method for inducing polarization perception in an observer

Apparatus for monitoring a human or animal subjects bodily function

Imaging apparatus and method

Superluminescent diode module

A module 5 accommodates multiple superluminescent light emitting diodes (SLEDs) 12. The SLEDs 12 are arranged in an enclosure 10 and output respective light beams to propagate into free space within the enclosure. The individual light beams from the SLED sources are combined into a single beam path within the enclosure using beam combiners 40. Each beam combiner 40 is realised as a planar optical element, the back side of which is arranged to receive an SLED beam and route it through the optical element to the front side where it is combined with another SLED beam that is incident on and reflected by the front side. The free-space propagating combined beam is output from the module via a port, the port may connect to an optical fibre 42 or may be a window in the enclosure. The module can be used as part of an optical coherence tomography (OCT) system, a fundus imaging system or endoscopic imaging system.

Wireless power and data transfer

Wireless power and data transfer system arranged to transmit a power signal having a first frequency; a secondary coil 1011 arranged to receive the power signal from the primary coil 1009 by wireless induction; a primary side circuit 1001 arranged to superimpose a first control signal onto the power signal between the coils at the primary coil 1009, the first control signal having a second frequency different to the first frequency; and a secondary side A wireless power and data transfer system 1000 comprising: a primary coil 1009 circuit arranged to superimpose a second control signal onto the power signal between the coils at the secondary coil 1011, the second control signal having a third frequency different to the first frequency and second frequency.

EYE PURSUIT LIGHTING

ADAPTIVE CAMERA AND ILLUMINATOR EYETRACKER

INTERIOR LIGHTING PROBE WITH HIGH THROUGHPUT

Ophthalmic device

There is provided a method of controlling an ophthalmic device having a first retinal image acquisition module operable to image an imaging region of a retina and an illumination module operable to concurrently illuminate an illumination region of the retina, the imaging region and the illumination region having a predetermined positional relationship to one another, the method comprises: controlling (S10) the first retinal image acquisition module to acquire a reference retinal image by imaging a reference imaging area of the retina; designating (S20) a target in the reference retinal image; controlling (S30) the first retinal image acquisition module to acquire a current retinal image of an initial imaging region within the reference imaging area; controlling (S40) the first retinal image acquisition module to move its imaging region of the retina from the initial imaging region to a destination imaging region using the target and at least a portion of the reference retinal image, and ...

Ophthalmic device

There is provided a method of controlling an ophthalmic device having a first retinal image acquisition module operable to image an imaging region of a retina and an illumination module operable to concurrently illuminate an illumination region of the retina, the imaging region and the illumination region having a predetermined positional relationship to one another, the method comprises: controlling (S10) the first retinal image acquisition module to acquire a reference retinal image by imaging a reference imaging area of the retina; designating (S20) a target in the reference retinal image; controlling (S30) the first retinal image acquisition module to acquire a current retinal image of an initial imaging region within the reference imaging area; controlling (S40) the first retinal image acquisition module to move its imaging region of the retina from the initial imaging region to a destination imaging region using the target and at least a portion of the reference retinal image, and ...

Alignment means of measurement instrument

Disclosed is an alignment means (100) of a measurement instrument (102). The alignment means comprises a housing(104); an optical component (106, 202, 302, 606) having a principal axis (204, 304) in a direction parallel to a desired alignment; a first light source (108, 206, 306, 620)positioned at a first distance S1 from the optical component and at a first height h1 from the principle axis; a second light source (110, 208, 308, 622) positioned at a second distance S2 from the optical component and at a second height h2 from the principle axis; and an angle barrier means (112, 210, 312,612) arranged between the optical component, and the first and second light sources. The housing, the optical component, and the angle barrier means are arranged to block visibility of the first light source along the principal axis at a distance superior to d1'; and block visibility of the second light source along the principal axis at a distance smaller than d2, wherein d2 is smaller than d1'.

Multi-fiber variable intensity wide-angle illuminator

Ophthalmic illumination device

An ophthalmic illumination device (1) comprises an illuminating body (3) in turn comprising a through-opening (4) whose side wall is formed by a member (5) made of an opalescent material. A light source (6) is housed inside the illuminating body (3) and a light-guide (14) adapted to radially convey the light beams emitted by the light source (6) towards an axis (A) of the through-opening (4) is positioned between the light source (6) and the opalescent member (5). Thanks to this solution it is possible to generate extremely homogeneous shafts of light, while minimizing the occurrence of dark portions.

Bichromatic white ophthalmic illuminator

An ophthalmic endoilluminator having only a first monochromatic light source emitting a first light and a second monochromatic light source emitting a second light. The first and second lights defining a light color axis representable on a chromaticity graph. A collimation element configured to collimate at least one of the first and second lights. An optical mixing device configured to mix the first and second lights into a single light beam. A lens configured to focus the single light beam. An optical fiber configured to carry the single light beam. A controller coupled to at least one of the first and second monochromatic light sources. The controller configured to tune at least one of the first and second monochromatic light sources such that the single beam of light represents a specific color or light at a point along the light color axis on the chromaticity graph.

Method and system for non-invasively monitoring biological or biochemical parameters of individual

A system and method are presented for use in monitoring one or more conditions of a subject's body. The system comprises a control unit which comprises an input port for receiving image data and data indicative of at least one external stimulation (external field) applied to a portion of the subject's body during collection of the image data therefrom, a memory utility, and a processor utility. The image data is indicative of a sequence of speckle patterns generated by the portion of the subject's body according to a certain sampling time pattern. The processor utility is configured and operable for carrying out the following: processing the image data utilizing the data indicative of the applied external field(s), said processing comprising determining a spatial correlation function between successive speckle patterns in the sequence, and determining a time varying spatial correlation function in the form of a time-varying function of at least one feature of the correlation function indicative ...

OCT surgical visualization system with macular contact lens

An ophthalmic visualization system can include an ocular lens positioned between a macular contact lens coupled to a procedure eye and a surgical microscope. The ocular lens can guide a light beam through the macular contact lens and into the procedure eye, and in combination with the macular contact lens generate an intermediate image of the procedure eye at an image plane between the procedure eye and the surgical microscope. The system can include a reduction lens positioned in the optical path between the surgical microscope and the ocular lens. The reduction lens and/or ocular lens can align a focus plane of the surgical microscope with the image plane. A method of visualizing a procedure eye in an ophthalmic procedure can include positioning an ocular lens and a reduction lens between a macular contact lens and a surgical microscope; and scanning the procedure eye with a light beam.

Method for determining a behavioural, postural or geometric-morphological characteristic of a person wearing spectacles

The invention relates to a method for determining at least one behavioural, postural or geometric-morphological characteristic of a person wearing spectacles. According to the invention, the method comprises the steps of: a) illuminating the wearer's head using an infrared light source (220, 230, 240), b) acquiring an image of the wearer's head using an infrared image sensor (210); c) in the image, locating reflections from the infrared light surface, reflected by the two lenses of the spectacles; and d) using a computation unit (250) to deduce the required characteristic as a function of the positions of the reflections in the image.

Device and method for measuring subjective refraction

The invention relates to a device for measuring the subjective refraction of a person in near and/or medium vision, which comprises, according to the invention, for each eye of the person, a correction mounting (3) provided with at least one corrective lens, the correction mountings (3) being arranged such that the person looks through the lenses. The position of each correction mounting (3) is variable such as to adjust an angle (a) between the axes of the lenses.

PHOTONIC LATTICE LEDS FOR OPHTHALMIC ILLUMINATION

Photonic lattice sources drive an optical fiber in an ophthalmic illuminator to illuminate the interior of an eye. To produce white light, an RGB combination of photonic lattice LEDs may be used. Alternatively, a bichromatic combination of photonic lattice LEDs produce white light.

HEAD-BORNE BINOCULAR INDIRECT OPHTHALMOSCOPE WITH INTEGRATED TELESCOPE

... abstract There is presented an improved head-borne binocular indirect ophthalmoscope for viewing the aerial image of the fundus of the eye, having the unique feature that it incorporates within each of its two observing portions a two-lens telescope of low magnifying power which magnifies said aerial image of the fundus. The telescope incorporated into the ophthalmoscope differs from the usual coaxial type in that the optical axis of the high powered objective lens and that of the high powered ocular lens of said telescope are caused to intersecteach other at an angle of about 94.degree. at the surface of a laterally positioned oblique front surface mirror, said lenses and said mirror being in a fixed relationship to each other within a transversely movable mounting as a fixed telescope unit such that the reflected secondary focus of the objective lens falls at the primary focus of the ocular lens, said unit being attached to a slide which is transversely movable along ways toward and away ...

OBJECTIF GRAND ANGULAIRE

IMAGING DEVICE FOR OPHTHALMIC LASER SYSTEM USING OFF-AXIS MINIATURE CAMERA

An imaging system for an ophthalmic laser system includes a prism cone made of a transparent optical material and disposed downstream of the focusing objective lens of the ophthalmic laser system, the prism cone having an upper surface, a lower surface parallel to the upper surface, a tapered side surface between the upper and lower surfaces, and a beveled surface formed at an upper edge of the prism cone and intersecting the upper surface and the side surface, and a camera disposed adjacent to the prism cone and facing the beveled surface. The camera is disposed to directly receive light that enters the lower surface of the prism cone and exits the beveled surface without having been reflected by any surface.

OPHTHALMIC DEVICE

There is provided a method of controlling an ophthalmic device having a first retinal image acquisition module operable to image an imaging region of a retina and an illumination module operable to concurrently illuminate an illumination region of the retina, the imaging region and the illumination region having a predetermined positional relationship to one another, the method comprises: controlling (S10) the first retinal image acquisition module to acquire a reference retinal image by imaging a reference imaging area of the retina; designating (S20) a target in the reference retinal image; controlling (S30) the first retinal image acquisition module to acquire a current retinal image of an initial imaging region within the reference imaging area; controlling (S40) the first retinal image acquisition module to move its imaging region of the retina from the initial imaging region to a destination imaging region using the target and at least a portion of the reference retinal image, and ...

MINIATURIZED MOBILE, LOW COST OPTICAL COHERENCE TOMOGRAPHY SYSTEM FOR HOME BASED OPHTHALMIC APPLICATIONS

Improved optical coherence tomography systems and methods to measure thickness of the retina are presented. The systems may be compact, handheld, provide in-home monitoring, allow the patient to measure himself or herself, and be robust enough to be dropped while still measuring the retina reliably.

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).

NARROW ANGLE ILLUMINATION RING FOR OPHTHALMIC SURGICAL LASER SYSTEM

A narrow angle illumination light source for an ophthalmic surgical laser system includes multiple light emitting diodes (LEDs), multiple corresponding ball lenses, multiple corresponding upper apertures located between the LEDs and the lenses (optional), and multiple corresponding lower apertures located below the lenses. The light passing through each upper aperture and corresponding lens forms a light cone having a defined divergence angle and cone axis angle; the light cone only illuminates the corneal and sclera of a docked eye without illuminating the patient's nose and orbit. The lower apertures may have distinctive shapes to aid video focusing. The multiple LEDs are distributed uniformly in the circle, and may be divided into multiple independently controllable segments which allows directional illumination. The LEDs also have controllable brightness to allow images of darker and brighter illuminations to be taken in short succession.

FOCUSING OPTICS FOR MIXED MODE SURGICAL LASER ILLUMINATION

Focusing optics for mode mixing may be used to homogenize different modes in an optical fiber used for surgical illumination. A vibration stage may impart mechanical motion to a condenser lens to generate a homogeneous illumination field from a coherent light source.

PURKINJE METER AND METHOD FOR AUTOMATIC EVALUATION

The invention relates to a new type of measurement method for automatically recording and evaluating the Purkinje reflections of an eye in order to determine the malposition (decentration and tilt) of intraocular or natural lenses and to a device for applying said method. According to the invention, the eye is systematically illuminated from different directions and, by means of linear regression, the relative lens orientation is extracted from the position of the Pukinje reflections thus produced.

METHOD AND SYSTEM FOR NON-INVASIVELY MONITORING BIOLOGICAL OR BIOCHEMICAL PARAMETERS OF INDIVIDUAL

A system and method are presented for use in monitoring one or more conditions of a subject's body. The system comprises a control unit which comprises an input port for receiving image data and data indicative of at least one external stimulation (external field) applied to a portion of the subject's body during collection of the image data therefrom, a memory utility, and a processor utility. The image data is indicative of a sequence of speckle patterns generated by the portion of the subject's body according to a certain sampling time pattern. The processor utility is configured and operable for carrying out the following: processing the image data utilizing the data indicative of the applied external field(s), said processing comprising determining a spatial correlation function between successive speckle patterns in the sequence, and determining a time varying spatial correlation function in the form of a time-varying function of at least one feature of the correlation function indicative ...

LUMINESCENT OPHTHALMIC DEVICE

A luminescent ophthalmic device for administering therapeutic materials, the device having at least one luminescent marker disposed in proximity to a therapeutic agent applicator so as facilitate placement in a treatment position when viewed using transcorneal or transpupillary viewing methods.

MULTI-LED OPHTHALMIC ILLUMINATOR

An ophthalmic endoilluminator has a power supply coupled to a light sourc e, a controller, a collimation device, an alignment device, a lens, and an o ptical fiber. The light source has three light emitting diodes. Each of the three light emitting diodes produces a different color light. The controller controls the operation of the three light emitting diodes. The collimation device collimates the light produced by at least one of the light emitting d iodes. The alignment device aligns the light individually produced by the th ree light emitting diodes into a single light beam. The lens focuses the sin gle light beam. The optical fiber for carries the single light beam.

OPHTHALMIC ENDOILLUMINATORS WITH DIRECTED LIGHT

Certain embodiments of an endoilluminator may include a cannula, an intermediate material, and an optical fiber. The cannula has a substantially cylindrical shape that defines an interior region and has a cylindrical axis. The intermediate material is disposed within the interior region. The optical fiber is disposed within the intermediate material and has a fiber optical axis and a distal end configured to emit light. The emitted light has an illumination pattern with an illumination axis that is not parallel to the cylindrical axis.

IMPROVEMENTS IN OR RELATING TO OPHTHALMOLOGY

The invention provides an apparatus and method for illuminating, imaging and treating the retina of an eye. The apparatus (10) comprises at least one light source (16), wherein the at least one light source (16) is adapted to provide collimated light (20) from a plurality of point sources (22), and wherein each point source (22) lies on an arc (18), and wherein the at least one light source (16) is configured to direct collimated light (20) from each point source (22) along the radius (24) of the arc (18) towards a centre point (26) of the arc (18), and wherein, in use, the apparatus (10) is arranged such that the centre point (26) of the arc (18) is substantially coincident with the pupillary point (40) of the eye (14), such that collimated light (20) is transmitted from the point source (22) through the pupillary point (40) of the eye (14) to illuminate the retina (12).

ENDOILLUMINATION USING DECENTERED FIBER LAUNCH

An endoilluminator system includes an endoilluminator probe and an illumination source. The endoilluminator probe includes a nano-scale optical fiber and a probe fiber connector, and the illumination source includes a source fiber connector. The illumination source is configured to produce an illumination spot at the source fiber connector having a diameter smaller than a diameter of a fiber core of the nano-scale optical fiber. The probe fiber connector and the source connector are configured when connected to align the illumination spot off-center relative to the nano-scale optical fiber such that the angular distribution of light emitted by the nano-scale optical fiber is increased relative to aligning the illumination spot at a center of the nano-scale optical fiber.

ILLUMINATED MICROSURGICAL INSTRUMENT INCLUDING OPTICAL FIBER WITH BEVELED END FACE

An illuminated microsurgical instrument includes a microsurgical instrument having a distal tip and an optical fiber for delivering a beam of light to a surgical site. The optical fiber includes a proximal end for receiving a light beam from a light source, and a distal end proximate to the distal tip of the microsurgical instrument for emitting the light beam. The distal end includes a beveled end face either oriented toward or oriented opposite from the distal tip of the microsurgical instrument.

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.

Optischer Betrachtungs- und Beleuchtungsapparat für medizinische und technische Zwecke.

Optischer Betrachtungs- und Beleuchtungsapparat für medizinische und technische Zwecke.

Apparat zur Beobachtung der Hornhaut des menschlichen Auges.

OBJECTIF DU TYPE GRAND ANGULAIRE.

eISPOSITIF D'ECLAIREMENT ET D'EXAMEN DE L'OEIL.

OPTICAL SYSTEM FOR THE LIGHTING OF THE EYE BACKGROUND.

OPTICAL EQUIPMENT TO THE ILLUSTRATION OF THE EYE INSIDE, IN PARTICULAR DURING EYE-SURGICAL INTERFERENCES.

Procedure for the regulation of the brilliance of a view field with the Endoskopie, as well as endoscope and screen arrangement for it.

Ophtalmoskopi lighting probe.

Eye examination equipment.

Die Erfindung betrifft ein Augenuntersuchungsgerät (1), insbesondere ein Perimeter, umfassend eine Projektionsvorrichtung (20) und einen konkaven Bildschirm (10). Das Augenuntersuchungsgerät (1) umfasst weiter einen konvexen Reflektor (30), wobei ein Bild (70, 71) von der Projektionsvorrichtung (20) auf den konvexen Reflektor (30) projizierbar und vom konvexen Reflektor (30) auf den konkaven Bildschirm (10) reflektierbar ist. Die Erfindung betrifft auch ein entsprechendes Abbildungsverfahren.

Robust illuminator probe for medical purposes.

Die Erfindung betrifft eine Beleuchtungssonde (1) für medizinische Zwecke, insbesondere für die Ophthalmologie, wo sie an die Aussenhaut (3) des Auges (4) legbar ist. Das Licht dringt durch diese Aussenhaut (3) ins Augeninnere (5). Im Bereich des distalen Endes ist mindestens eine Querschnittserweiterung (9) vorhanden, die die Aussenhaut (3) und das das Auge (4) umgebende Gewebe (10) auseinanderdrückt. Dadurch wird mindestens eine Lichtaustrittsöffnung frei gehalten und die Ausleuchtung des Augeninneren (5) verbessert. Dieses lässt sich optimal untersuchen, ohne dass die Pupille (7) versperrt ist oder Einschnitte notwendig sind. Die Querschnittserweiterung (9) kann symmetrisch oder asymmetrisch ausgebildet sein und in Bezug auf eine Längsachse der Beleuchtungssonde (1) entweder koaxial oder azentrisch angeordnet sein. Die Querschnittserweiterung (9) kann an einem distalen Endstück (8) angeordnet sein oder selbst ein separates, lösbares Element bilden.

СИСТЕМА И СПОСОБ ДЛЯ БЕСКОНТАКТНОГО ИЗМЕРЕНИЯ ДЛИНЫ ОСИ, И/ИЛИ КРИВИЗНЫ РОГОВИЦЫ, И/ИЛИ ГЛУБИНЫ ПЕРЕДНЕЙ КАМЕРЫ ГЛАЗА ПРЕДПОЧТИТЕЛЬНО ДЛЯ РАСЧЕТА ВНУТРИГЛАЗНЫХ ЛИНЗ (ВГЛ)

... 1. Комбинированный прибор для бесконтактного измерения длины оси и радиуса кривизны роговицы глаза (14), имеющий а) интерферометрическую систему (1-6) с регулируемой оптической разностью хода, б) первый светоделительный кубик (8), проецирующий излучение интерферометрической системы (1-6) на глаз (14), в) фотодиод (17), на который при измерении длины оси через второй светоделительный кубик (15) и фокусирующий элемент (16) выводятся отраженные от роговицы и сетчатки составляющие светового луча, г) несколько расположенных концентрично и симметрично оптической оси глаза (14) источников (10) света, каждый из которых для измерения кривизны роговицы освещает глаз наклонно к оптической оси, формируя точечное изображение, и д) камеру (23), на которую при измерении кривизны роговицы через первый и второй светоделительные кубики (8, 15) проецируются изображения Пуркинье, представляющие собой отражения точечных источников (10) света от роговицы, е) при этом часть отражаемого роговицей и сетчаткой излучения ...

SYSTEM AND METHOD FOR NON-CONTACT MEASUREMENT OF LENGTH AXIS, AND/OR CURVATURE OF THE CORNEA, AND/OR DEPTH OF ANTERIOR CHAMBER OF THE EYE, PREFERABLY FOR CALCULATION OF INTRAOCULAR LENSES (VGL)

Fundus examination system

Patient head elevation angle positioning instrument specially used in ophthalmology department

Lighting device

Frontal projector

Contact lens for electro-retinography - allows light conductor to converge light in pupil for reflection to photo cell

SYSTEME OPTIQUE POUR L'ECLAIREMENT DU FOND DE L'OEIL

Système optique pour l'éclairement du fond de l'oeil et pour la reproduction sur celui-ci d'images de repères-témoins. Dans le parcours de la lumière entre une source lumineuse 6 et un objectif ophtalmologique 14, il est prévu un collecteur 8 et un repère-témoin 4, et un système 1, 2, 3 reproduisant l'image est disposé entre le repère-témoin 4 et l'objectif ophtalmologique 14 de manière à pouvoir être déplace le long de l'axe optique. L'invention s'applique notamment à la construction d'ophtalmoscopes à main.

BINOCULAR MULTIPLEXING DEVICE AND METHOD

Head light for doctors

Apparatus and method for checking metabolic auto-regulation

정전 구동기들을 이용하는 이미징 프로브들

... 정전력에 의해 이미징 프로브 내에 위치되는 광 섬유에 움직임을 가하기 위해 적어도 하나의 대전된 전극을 이용하는 디바이스들, 시스템들, 및 방법들이 제공된다. 몇몇 실시예에서, 안과 이미징 프로브는 핸들; 핸들에 결합되는 캐뉼라; 핸들 및 캐뉼라 내에 적어도 부분적으로 위치되는 광 섬유로서, 이미징 광원으로부터 이미지 광을 수신하도록 그리고 이미징 광을 캐뉼라 내에 위치되는 광학 소자로 안내하도록 구성되는, 상기 광 섬유; 및 광 섬유에 움직임을 전달하도록 구성되는 구동기 시스템으로서, 캐뉼라 내에 위치되는 전극을 포함하고 전극 및 광 섬유의 도전성 레이어에 전하를 선택적으로 전달함으로써 광 섬유에 움직임을 전달하도록 구성되는, 상기 구동기 시스템을 포함할 수 있다.

System and method for monitoring of objects with increased sensitivity

Optical intraocular pressure measuring apparatus and operating method thereof

An optical intraocular pressure measuring apparatus includes a light source, an optical module, a pressure providing module, a deformation measuring module, and a processing module. The light source provides an incident light. The optical module divides the incident light into a first incident light and a second incident light and emits them to a reference object and an object to be detected through a first light path and a second light path, and receives a first reflected light signal from the reference object and a second reflected light signal from the object to be detected respectively. The pressure providing module coupled with the second light path provides a pressure to deform the object to be detected. The deformation measuring module measures the deformation of the object to be detected. The processing module processes the first reflected light signal and second reflected light signal to generate an intraocular pressure measurement result.

COMPOSITE OPHTHALMIC MICROCANNULA

APPARATUS FOR MEASURING THE TOPOGRAPHY AND THICKNESS OF THE CORNEA AND MEASURING METHOD USED

ILLUMINATED LENS APPARATUS

A NEW LIGHT SOURCE FOR DIAGNOSTIC INSTRUMENTS

A new light source (e.g. LEDs) enables new designs in all or some key elements within diagnostic instruments. New light sources allow improvements in life of light source, infra red emitted, power consumption, colour temperature, light flux directionality, simplification of optics design, adaptation of light flux directionality, and overall constructional simplification. The new light source allows for the replacement of some or all of the components designed for incandescent filament bulbs. The improved light source may allow for either an entirely new design of all or some core modules of the instrument, or by alteration of pre-existing modules.

SYSTEM AND METHOD FOR THE NON-CONTACTING MEASUREMENT OF THE AXIS LENGTH AND/OR CORNEA CURVATURE AND/OR ANTERIOR CHAMBER DEPTH OF THE EYE, PREFERABLY FOR INTRAOCULAR LENS CALCULATION

Instrument combiné permettant de déterminer sans contact la longueur de l'axe (AL), la profondeur de la chambre antérieure (VKT) et la courbure de la cornée (HHK) de l'oeil, notamment afin de calculer et de choisir une lentille intra-oculaire (IOL) à implanter.

SYSTEMS, DEVICES, AND METHODS INCLUDING A DARK-FIELD REFLECTED-ILLUMINATION APPARATUS

Systems, devices, and methods are described for providing a monitor or treatment device configured to, for example, detect hemozoin, as well as to monitor or treat a malarial infection.

ANTERIOR SEGMENT VIEWING DEVICE

A hand held illuminated magnifying device for examining the anterior segment of the eye and peri-ocular tissues having a head (10) bearing a convex magnifying lens (13) and an observer's eye cup (12) is held in close proximity to the eye to be examined with the compressible rim (11) around the head's open end in contact with the peri-orbital skin. The contoured open rim is shaped to allow correct lens positioning and is cut away (16) to allow digital retraction of the patient's eye lids by the examiner. The compressible rim accomodates variations in anatomy and is removeable a llowing instrument use without skin contact. The head forms a closed system when in position excluding most ambient light. Internal illumination is provided by circuits of white and blue light emitting diodes within the instrument head powered by batteries contained within the handle (17).

Ophthalmic surgical apparatus and attachment for ophthalmic surgery

An ophthalmic surgical apparatus includes an observation optical system, an illumination optical system, an interference optical system, and an image forming unit. The observation optical system is configured to observe an eye through an objective lens. The illumination optical system is configured to illuminate the eye through the objective lens. The interference optical system includes a reference optical path and a signal optical path which leads to the eye through the deflecting member located between the objective lens and the eye, and is configured to detect interference light based on light having passed through the signal optical path and returning from the eye and the reference light having passed through the reference optical path. The image forming unit forms an image of the eye based on a detection result obtained by the interference optical system.

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

Fundus camera

A fundus camera includes an eyeball-offset detection device and an annular illumination device. The eyeball-offset detection device is configured to detect an offset vector of a lens of the fundus camera relative to an inspected eyeball. The annular illumination device includes a plurality of illumination elements that are arranged in a ring shape around an optical axis of an imaging system of the fundus camera. According to the offset vector of the lens relative to the inspected eyeball, the fundus camera selectively activates one or more illumination elements at corresponding positions to keep an illumination optical path away from a center area of the pupil of the inspected eyeball to reduce effects of corneal reflection and improve illumination quality. Therefore, the abovementioned fundus camera has a large operable range.

Method and apparatus for screening for retinopathy

A method of screening for retinal disease including directing a first light at a first portion of the retina, directing a second light at a second portion of the retina, measuring a first pupillary response of the eye as a result of the first light and a second pupillary response as a result of the second light, and generating an indication of a severity level of the retinal disease using the first pupillary response and the second pupillary response. Also, an apparatus that implements this method including a light source for directing a first light at a first retinal portion and a second light at a second retinal portion, a pupil measuring device for measuring the pupillary response of the eye as a result of the first light and second light, a processor in electronic communication with the pupil measuring device, and a memory in electronic communication with the processor.

Retinal wide-angle illuminator for eye surgery

The illuminator of the invention takes relatively coherent light exiting from a fiber optic cable, and disperses it in an even manner over a wide viewing area of an eye retina, and by securing a transparent material having a light dispersing first surface to face the light output end of the fiber optic cable with an air gap in-between, thus allowing a large light index differential between the fiber material and the light dispersing material.

Multiple spot photomedical treatment using a laser indirect ophthalmoscope

A laser indirect ophthalmoscope (LIO) apparatus for photomedical treatment and/or diagnosis is presented. The LIO apparatus allows multiple spot ophthalmic surgery to be performed in a wider range of patient positions and less intrusively than currently available methods. The LIO apparatus utilizes a separate or integral beam multiplier that generates one or more optical beams via spatial and/or temporal separation, and an optical system that conditions and directs the one or more optical beams to a target to form a pattern. The LIO apparatus includes a headset, and is therefore wearable by the user (e.g., a physician).

Eye exercise device

An eye exercise device comprising a single open goggle chamber with no binocular or magnified optical lens of any sort having a front portion, protective first plate and second plate, light emitting diodes (LEDs), a control panel and a power supply, is disclosed. The control panel is coupled to the power supply, smart electronic glass and LEDs. The first plate is disposed at the front portion of the single open goggle chamber and the second plate is disposed behind the first plate. The second plate comprises a smart electronic glass and the first plate comprises a polycarbonate protective screen, disposed at a center region across an eye of a user. The smart electronic glass is configured to switch to an opaque state for short-sightedness and switch to a transparent state for farsightedness. The LEDs disposed at the periphery of the second plate is configured to emit light in a predefined sequence, thereby encouraging specific ocular movements.

OPTICAL COHERENCE TOMOGRAPHY DEVICE, METHOD, AND SYSTEM

In accordance with one aspect of the present invention, an optical coherence tomography instrument comprises an eyepiece for receiving at least one eye of a user is provided; a light source that outputs light that is directed through the eyepiece into the user's eye; an interferometer configured to produce optical interference using light reflected from the user's eye; an optical detector disposed so as to detect said optical interference; and electronics coupled to the detector. The electronics can be configured to perform a risk assessment analysis based on optical coherence tomography measurements obtained using the interferometer. An output device can be electrically coupled to the electronics, and may be configured to output the risk assessment to the user through the output device. The optical coherence tomography instrument can be self-administered, and the eyepiece can be a monocular system or a binocular system.

Portable pattern-generating ophthalmic probe

A pattern-generating intraocular probe is provided that includes a cannula including a diffractive optical element (DOE), the DOE being patterned such that an on-axis illumination of the DOE produces an emitted beam forming a linear pattern; and a handpiece connected to a proximal of the cannula.

Eye Detection Method and System

An eye detection method for detecting a degree of eye opening and closure of a testee includes detecting a location of an eye pupil, a location of an inner eye corner and a location of an outer eye corner of an eye of the testee; calculating an eye width according to the location of the inner eye corner and the location of the outer eye corner; multiplying the eye width by a specific ratio to obtain an eye height; generating a region of interest with a center on the location of the eye pupil, a length equal to the eye width, and a width equal to the eye height; and determining a ratio of the eye occupying a detection area in the region of interest, and determining the degree of eye opening and closure of the testee accordingly.

FREQUENCY-BASED MODE MIXING FOR SURGICAL LASER ILLUMINATION

Frequency-based mode mixing may be used to homogenize different modes in an optical fiber used for surgical illumination. A laser modulator may introduce frequency modulation to laser light to generate a homogeneous illumination field due to increased mode mixing in the optical fiber.

OPHTHALMIC DEVICE

A model eye is disposed on a reference light path of reference light in a reference optical system so as to reflect or scatter the reference light at a model retina in order to form an interference optical system used to obtain interference light from the reference light of the reference optical system and signal light illuminated onto an examined eye in a signal optical system.

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.

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.

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.

TEAR DUCT RESISTANCE MEASURING SYSTEM

A system for measuring the flow properties of a tear duct, to ascertain its flow resistance, includes a syringe communicating with a cannula to supply liquid to a punctum of an eye, the cannula having a tip to seal to the punctum. A motor is arranged to actuate the syringe. A pressure sensor monitors the pressure of the liquid supplied to the punctum. A monitoring circuit provides an indication of the flow resistance. A feedback circuit controls the motor in accordance with the measured pressure, to maintain a preset liquid pressure, or to ensure that the liquid pressure does not exceed a preset threshold. The system may include means to prevent flow through the other punctum of the eye. If the flow rate of the liquid supplied to the punctum is also monitored, the monitoring circuit is arranged to determine the flow resistance from the pressure and the flow rate.

BINOCULAR MULTIPLEXING METHOD AND DEVICE

A binocular multiplexing device for a single-channel ophthalmological instrument for objective measurement of at least one vision parameter of a subject, the ophthalmological instrument including elements for generating a single light beam, elements for collecting a measurement beam by reflecting and/or refracting the light beam against the subject's eye and a sensor associated with the single measurement channel. The binocular multiplexing device includes optical separation first elements for receiving an image beam originating from a stimulus target and separating the image beam into a right and left ocular stimulation beam; optical switching elements for switching the single light beam selectively onto a right or left monocular light beam's optical path to form, after reflection and/or refraction by the eye in question, a right, respectively left, ocular measurement beam, and optical combination elements for superimposing the right, respectively left, ocular stimulation beam, and the ...

Self-Illuminated Handheld Lens for Retinal Examination and Photography and Related Method thereof

System and method directed towards providing full and even illumination of a patient's retina through lighting integrated into a handheld fundus lens. By integrating the lighting, the method and system reduces and even eliminate many lens artifacts and reflections. By increasing the accuracy, quality, and field of view afforded during clinical examination of the retina, the method and system will allow practitioners to make more accurate diagnoses and will increase safety during retinal surgical procedures.

System And Method For Objective Chromatic Perimetry Analysis Using Pupillometer

The present invention relates to a system, device and a method for objective visual field testing and in particular, to such a system and method in which provides objective chromatic perimetry test or color vision test using a pupillometer.

Ophthalmic endoilluminators with directed light

Certain embodiments of an endoilluminator may include a cannula, an intermediate material, and an optical fiber. The cannula has a substantially cylindrical shape that defines an interior region and has a cylindrical axis. The intermediate material is disposed within the interior region. The optical fiber is disposed within the intermediate material and has a fiber optical axis and a distal end configured to emit light. The emitted light has an illumination pattern with an illumination axis that is not parallel to the cylindrical axis.

Module for Transmitting a Light Beam and Surgical Microscope with Deflecting Element and Fundus Imaging System

The invention is directed to a module for transmitting a light beam () from a light source () to an object region () of a surgical microscope (). The module () has a first interface () for attaching the module to the surgical microscope () below a main objective () of the surgical microscope (). The module has a second interface () for connecting the light source () to the module () and further includes an imaging optic () for imaging the light source () in the object region () via a scanning beam path (). 1. A module for transmitting a light beam from a light source to an object region of a surgical microscope having a main objective , the module being adapted to coact with a fundus imaging system and comprising:a first interface for attaching said module to said surgical microscope below said main objective thereof;a second interface for attaching said light source to said module;an imaging optic for imaging said light source in the object region via a scanning beam path;said imaging optic including a stationary deflecting element arranged in said scanning beam path for deflecting said scanning beam path in a direction toward said object region;said imaging optic including a scanning unit disposed in said scanning beam path between said second interface and said deflecting element; and,a third interface arranged in said scanning beam path downstream of said deflecting element for attachably connecting said fundus imaging system to said module.2. The module of claim 1 , wherein said scanning unit includes a first scanning mirror pivotally journalled about a first axis.3. The module of claim 2 , wherein said first scanning mirror is pivotally journalled about a second axis.4. The module of claim 2 , wherein said scanning unit includes a second scanning mirror pivotally journalled about a third axis.5. The module of claim 1 , wherein said deflecting element is configured as a dichroic beam splitter plate.6. The module of claim 1 , wherein said deflecting element is ...

Patient interface for ophthalmologic diagnostic and interventional procedures

An ophthalmic system may comprise an imaging device having a field of view oriented toward the eye of the patient; a patient interface housing defining a passage therethrough, having a distal end coupled to one or more seals configured to be directly engaged with one or more surfaces of the eye of the patient, and wherein the proximal end is configured to be coupled to the patient workstation such that at least a portion of the field of view of the imaging device passes through the passage; and two or more registration fiducials coupled to the patient interface housing in a predetermined geometric configuration relative to the patient interface housing within the field of view of the imaging device such that they may be imaged by the imaging device in reference to predetermined geometric markers on the eye of the patient which may also be imaged by the imaging device.

METHOD AND APPARATUS FOR IMAGING THE CHOROID

A method and apparatus for imaging the choroid. The method comprises indirectly illuminating the choroid of an eye using incident light having a wavelength spectrum in the near-infrared region; and collecting the light passing out through the choroid and the pupil of the eye using an image sensor to obtain an image of the choroid. 1. A method to image the choroid , the method comprising:indirectly illuminating the choroid of an eye using incident light having a wavelength spectrum in the near-infrared region; andcollecting the light passing out through the choroid and the pupil of the eye using an image sensor to obtain an image of the choroid.2. The method of claim 1 , wherein indirectly illuminating the choroid comprises transclerally illuminating the choroid.3. The method of claim 2 , wherein transclerally illuminating the choroid comprises applying the incident light transdermally through the upper or lower eyelid.4. The method of claim 1 , wherein indirectly illuminating the choroid comprises propagating a substantial portion of the incident light through the sclera of the eye claim 1 , the sclera acting as a waveguide to guide the incident light to the choroid.5. The method of claim 1 , wherein indirectly illuminating the choroid comprises illuminating the choroid by applying the incident light at a plurality of locations surrounding the eye using one or more light sources associated with different angles of incidence.6. The method of claim 1 , further comprising:Adjusting the incident angle of the incident light to control the proportion of the incident light that propagates through the sclera to the rear of the eye to the incident light that is transmitted through the sclera near the front of the eye.7. The method of claim 1 , wherein obtaining the image of the choroid comprises capturing a single image of the choroid or capturing a continuous stream of images of the choroid.8. The method of claim 1 , wherein obtaining the image of the choroid comprises: ...

Ophthalmology

The invention provides an apparatus and method for illuminating, imaging and treating the retina of an eye. The apparatus () comprises at least one light source (), wherein the at least one light source () is adapted to provide collimated light () from a plurality of point sources (), and wherein each point source () lies on an arc (), and wherein the at least one light source () is configured to direct collimated light () from each point source () along the radius () of the arc () towards a centre point () of the arc (), and wherein, in use, the apparatus () is arranged such that the centre point () of the arc () is substantially coincident with the pupillary point () of the eye (), such that collimated light () is transmitted from the point source through the pupillary point () of the eye () to illuminate the retina (). 1. An apparatus for illuminating the retina of an eye comprising:at least one light source,wherein the at least one light source is adapted to provide collimated light from a plurality of point sources,and wherein each point source lies on an arc,and wherein the at least one light source is configured to direct collimated light from each point source along the radius of the arc towards a centre point of the arc,and wherein, in use, the apparatus is arranged such that the centre point of the arc is substantially coincident with the pupillary point of the eye, such that collimated light is transmitted from the point source through the pupillary point of the eye to illuminate the retina.2. An apparatus according to claim 1 , wherein the apparatus comprises a plurality of light sources claim 1 , wherein each light source is adapted to provide collimated light from each point source.3. An apparatus according to claim 1 , wherein the radius of the arc is between 3 mm and 500 mm.4. An apparatus according to claim 2 , wherein each light source includes one or more light sources of differing wavelengths.5. An apparatus according to claim 2 , wherein each ...

System and Method for Detecting Amyloid Proteins

In accordance with an embodiment of the invention, there is provided a device and method for detecting an amyloid protein in an eye of a mammal. A method comprises illuminating the eye with a light source having at least one of a wavelength property, a polarization property or a combination thereof, each appropriate to produce fluorescence in at least an amyloid-binding compound when the amyloid-binding compound is bound to the amyloid protein, the amyloid-binding compound having been introduced to the eye and specifically binding to the amyloid protein indicative of the amyloidogenic disorder; and determining a time decay rate of fluorescence for at least the fluorescence produced by the amyloid-binding compound bound to the amyloid protein, the determining permitting distinguishing of the presence of the amyloid-binding compound bound to the amyloid protein in the eye based on at least the time decay rate. 1. A device for detecting an amyloid protein in an eye of a mammal , the device comprising:a light source configured to emit light to illuminate the eye with at least one of a wavelength of light, a polarization of light or a combination thereof, each appropriate to produce fluorescence in at least an amyloid-binding compound when the amyloid-binding compound is bound to the amyloid protein, the amyloid-binding compound having been introduced to the eye and specifically binding to the amyloid protein indicative of the amyloidogenic disorder; andan optical unit configured to receive light including fluorescence produced as a result of the illumination of the eye and to determine a time decay rate of fluorescence for at least the fluorescence produced by the amyloid-binding compound bound to the amyloid protein, the determining permitting distinguishing of the presence of the amyloid-binding compound bound to the amyloid protein in the eye based at least on the time decay rate.2. A device according to claim 1 , wherein the optical unit is configured to determine ...

DIAGNOSTIC DEVICE FOR DETECTING A LAYER BOUNDARY IN AN EYE AND RING ELEMENT FOR THE DIAGNOSTIC DEVICE

The aim of the present invention is to propose a diagnostic device for detecting a layer boundary which facilitates the determination of layer thicknesses in the human eye. For this purpose, a diagnostic device for detecting a layer boundary in an eye is proposed, with a light source wherein the light source defines an object plane, with a sensor unit with a beam path which is designed to guide at least one measuring beam 13 of the light source from the object plane of the light source into an image plane and/or into an intersecting region of the measuring beam with an optical axis in the eye with an actuator designed to move the image plane and/or the intersecting region along the optical axis wherein the beam path is designed such that, in a detection state, the measuring beam is guided from a layer boundary into the sensor unit if the image plane and/or the intersecting region is located on the layer boundary, and with an evaluation unit designed to recognize the detection state on the basis of the signals of the sensor unit wherein the evaluation unit is designed to estimate and/or determine a layer thickness d d d between a first and a second layer boundary on the basis of the position of the actuator in a detection state of the first and the second layer boundary. 1. A diagnostic device for detecting a layer boundary in an eye , a lens or another translucent body comprising:a light source, wherein the light source defines an object plane,a sensor unit,a beam path which is designed to guide at least one measuring beam of the light source from the object plane of the light source into an image plane and/or into an intersecting region of the measuring beam with an optical axis in the eye,an actuator which is designed to move the image plane and/or the intersecting region along the optical axis,the beam path is designed such that, in a detection state, the measuring beam is guided from a layer boundary into the sensor unit if the image plane and/or the ...

METHOD AND SYSTEM FOR NON-INVASIVELY MONITORING BIOLOGICAL OR BIOCHEMICAL PARAMETERS OF INDIVIDUAL

A system and method are presented for use in monitoring one or more conditions of a subject's body. The system includes a control unit which includes an input port for receiving image data, a memory utility, and a processor utility. The image data is indicative of data measured by a pixel detector array and is in the form of a sequence of speckle patterns generated by a portion of the subject's body in response to illumination thereof by coherent light according to a certain sampling time pattern. The memory utility stores one or more predetermined models, the model comprising data indicative of a relation between one or more measurable parameters and one or more conditions of the subject's body. The processor utility is configured and operable for processing the image data to determine one or more corresponding body conditions; and generating output data indicative of the corresponding body conditions. 1. A system for use in monitoring one or more conditions of a subject's body , the system comprising a control unit comprising:an input port for receiving image data measured by a pixel detector array and being in the form of a sequence of speckle patterns generated by a portion of the subject's body in response to illumination thereof by coherent light according to a certain sampling time pattern;a memory utility for storing one or more predetermined models, the model comprising data indicative of a relation between one or more measurable parameters and one or more conditions of the subject's body; and processing the image data and determining a spatial correlation function between successive speckle patterns in the sequence, and determining a time varying spatial correlation function in the form of a time-varying function of at least one feature of the correlation function, the time-varying spatial correlation function being indicative of a change of the speckle pattern over time;', 'selecting at least one parameter of the time-varying spatial correlation function, ...

Multi-photon Tissue Imaging

A multimodal method for imaging tissue comprising: aligning an excitation light source with at least a portion of the tissue; selecting at least two modalities of image acquisition; imaging the tissue portion with each of the modalities of image acquisition; and constructing a dual mode image using images from each of the modalities of image acquisition. A multimodal system for imaging tissue comprising: an excitation light source or light sources; an optical and alignment system for directing the excitation beam or beams to a sample and receiving an emission beam from the sample; at least one detector for receiving the emission beam from the sample; and a spectral filtering or dispersing device for providing at least two imaging modalities at the at least one detector; and a processor for analyzing the detected emission beam and constructing a dual mode image using images from each of the modalities of image acquisition. 1. A multimodal method for imaging tissue comprising:aligning an excitation light source with at least a portion of the tissue;selecting at least two modalities of image acquisition, the at least two modalities comprising at least two modalities selected from the group consisting of two photon excitation fluorescence, two photon autofluorescence, fluorescence lifetime imaging, autofluorescence lifetime imaging, second harmonic generation, third harmonic generation, coherent anti-stokes Raman scattering (CARS), broadband or multiplex CARS, stimulated Raman scattering, stimulated emission, nonlinear absorption, and micro-Raman microscopy;imaging the tissue portion with each of the modalities of image acquisition; andconstructing a dual mode image using images from each of the modalities of mage acquisition.2. The method of wherein the tissue comprises eye tissue.3. The method of wherein the eye tissue comprises trabecular meshwork (TM) eye tissue.4. The method of wherein the eye tissue comprises at least one of the group comprising:cornea, ...

Mobility identity platform

The present disclosure is directed towards a compact, mobile apparatus for iris image acquisition, adapted to address effects of ocular dominance in the subject and to guide positioning of the subject's iris for the image acquisition. The apparatus may include a sensor for acquiring an iris image from a subject. A compact mirror may be oriented relative to a dominant eye of the subject, and sized to present an image of a single iris to the subject when the apparatus is positioned at a suitable distance for image acquisition. The mirror may assist the subject in positioning the iris for iris image acquisition. The mirror may be positioned between the sensor and the iris during iris image acquisition, and transmit a portion of light reflected off the iris to the sensor.

CORNEAL HYDRATION SENSING SYSTEM

A corneal hydration sensing system includes an illumination system configured to provide an illumination beam of terahertz radiation, an optical system arranged in an optical path of the illumination system to relay and direct at least a portion of the illumination beam of terahertz radiation onto a cornea of a subject and to receive at least a portion of terahertz radiation reflected from the cornea to provide a return beam of terahertz radiation, and a detection system arranged in an optical path of the return beam of terahertz radiation. The detection system is configured to provide a detection signal from detecting at least a portion of the return beam of terahertz radiation. The corneal hydration sensing system also includes a signal processing system configured to communicate with the detection system to receive the detection signal. The signal processing system processes the detection signal to provide a measure of an amount of hydration sensed in the cornea of the subject. 1. A corneal hydration sensing system , comprising:an illumination system configured to provide an illumination beam of terahertz radiation;an optical system arranged in an optical path of said illumination system to relay and direct at least a portion of said illumination beam of terahertz radiation onto a cornea of a subject and to receive at least a portion of terahertz radiation reflected from said cornea to provide a return beam of terahertz radiation;a detection system arranged in an optical path of said return beam of terahertz radiation, said detection system configured to provide a detection signal from detecting at least a portion of said return beam of terahertz radiation; anda signal processing system configured to communicate with said detection system to receive said detection signal,wherein said signal processing system processes said detection signal to provide a measure of an amount of hydration sensed in said cornea of said subject.2. A corneal hydration sensing system ...

ADAPTIVE OPTICS APPARATUS THAT CORRECTS ABERRATION OF EXAMINATION OBJECT AND IMAGE TAKING APPARATUS INCLUDING ADAPTIVE OPTICS APPARATUS

An adaptive optics apparatus includes a first light modulating unit configured to perform modulation in a polarization direction of one of two polarized light components in light emitted from a light source, a changing unit configured to rotate the light modulated by the first light modulating unit by 90 degrees, a second light modulating unit configured to modulate the light changed by the changing unit in the polarization direction, and an irradiating unit configured to irradiate a measurement object with the light modulated by the second light modulating unit. 1. An ophthalmologic imaging apparatus comprising:a light modulating unit configured to modulate light in a polarization direction of one of two polarized light components, wherein the light is emitted from a light source;a changing unit configured to rotate a polarization direction of the modulated light by 90 degrees, wherein the light modulating unit modulates the light from the changing unit so as to modulate the light in a polarization direction of the other of the two polarized light components;an irradiating unit configured to irradiate an eye with the modulated light; andan image obtaining unit configured to obtain an image of the eye on the basis of return light from the eye irradiated with the modulated light.2. The ophthalmologic imaging apparatus according to claim 1 , wherein two wave surfaces of the light at the time of modulating the light in the two polarized light components are in an optically conjugate relationship and in an erected image relationship claim 1 , andwherein the two wave surfaces are of the same magnification.3. The ophthalmologic imaging apparatus according to claim 1 , further comprising a separating unit configured to separate the light from the light source into light to be incident on the light modulating unit and reference light claim 1 , wherein the image obtaining unit obtains a tomographic image of a retina of the eye on the basis of interfering light of the return ...

Control apparatus and control method

A control apparatus includes an irradiation unit configured to irradiate a measurement object with a measuring beam, a restriction unit configured to restrict the measuring beam from being incident on the measurement object and to reflect or scatter the measuring beam, and a polarization control unit configured to control, based on the measuring beam reflected or scattered by the restriction unit, polarization of the measuring beam.

OPHTHALMIC APPARATUS

An ophthalmic apparatus is provided with a light source, an optical measurement system, an optical reference system, an optical calibration system, a light receiving element, and a processor. The light receiving element receives an interference light for measurement produced by both the reflected light guided by the optical measurement system and the reference light guided by the optical reference system, and also receives an interference light for calibration produced by the calibration light guided by the optical calibration system and the reference light guided by the optical reference system. The processor determines a position of a measuring portion inside an eye to be examined by Fourier-analyzing the interference light for measurement and the interference light for calibration. 1. An ophthalmic apparatus comprising:a light source;an optical measurement system configured to radiate light from the light source to an interior of an eye to be examined and guide reflected light from the eye;an optical reference system configured to guide the light from the light source as reference light;an optical calibration system configured to guide the light from the light source as calibration light;a light receiving element configured to receive interference light for measurement produced by both the reflected light guided by the optical measurement system and the reference light guided by the optical reference system, and also receive interference light for calibration produced by both the calibration light guided by the optical calibration system and the reference light guided by the optical reference system; anda processor determines a position of a measuring portion inside the eye by Fourier-analyzing the interference light for measurement and the interference light for calibration received by the light receiving element.2. The ophthalmic apparatus according to claim 1 , whereinthe optical calibration system is designed such that an optical path length from 0 point ...

OPHTHALMOLOGIC APPARATUS

In order to detect a deterioration status of an imaging light source in an accurate manner, an ophthalmologic apparatus includes a light intensity detection unit configured to detect a light intensity of light emitted from the imaging light source, a determination unit configured to determine a status of the imaging light source on the basis of the light intensity detected by the light intensity detection unit and a light emitting time of the imaging light source, and a display control unit configured to display, on a display unit, the status of the imaging light source on the basis of a determination result by the determination unit. 1. An ophthalmologic apparatus , comprising:an imaging light source;a light intensity detection unit configured to detect a light intensity of light emitted from the imaging light source;a determination unit configured to determine a status of the imaging light source on the basis of the light intensity detected by the light intensity detection unit and a light emitting time of the imaging light source; anda display control unit configured to display, on a display unit, the status of the imaging light source on the basis of a determination result by the determination unit.2. An ophthalmologic apparatus according to claim 1 , wherein the display control unit is configured to select a display form for indicating the status of the imaging light source and to display the selected display form on the display unit.3. An ophthalmologic apparatus according to claim 1 , wherein the light emitting time of the imaging light source is a time from a start of an emission until the light intensity detected by the light intensity detection unit reaches a predetermined light intensity.4. An ophthalmologic apparatus according to claim 1 , wherein when the determination unit determines that the light emitting time of the imaging light source has exceeded a predetermined time claim 1 , the display control unit is configured to display a display form ...

IMAGING ADAPTOR FOR CAMERA

An adaptor adapts an SLR camera for use as an ophthalmic viewing and imaging device. The adaptor is mounted to the camera between the camera body and the camera lens, and includes optical components arranged to direct illumination of the interior of the eye. The adaptor includes a first light source configured to provide a maximum level of illumination that is sufficient to identify structures of interest within an interior of an eye. The adaptor directs light from a second, external source to provide a level of illumination sufficient to obtain a fundus image. Optical components within the adaptor define a first optical pathway for directing light from the first light source to the lens, a second optical pathway for directing light from the second light source to the camera lens, and a third optical pathway for directing light from the camera lens through the adaptor to the camera. 1. An adaptor configured to adapt a camera for use as an ophthalmic viewing and imaging device , the adaptor comprisinga body including a first interface configured to connect to the camera so that an optical axis of the adaptor is aligned with an optical axis of the camera and a second interface configured to connect to a camera lens so that the optical axis of the adaptor is aligned with an optical axis of the camera lens,a first light source disposed within the body and configured to provide a level of illumination that is, at maximum, sufficient to identify structures of interest within an interior of an eye,a first optical pathway for directing light from the first light source to the camera lens,a second optical pathway for directing light from a second light source to the camera lens, the second light source disposed externally relative to the body, anda third optical pathway for directing light from the camera lens through the adaptor to the camera.2. The adaptor of claim 1 , wherein the first claim 1 , second and third optical pathways each include a portion that is coincident ...

LASER ILLUMINATION SYSTEM

An ophthalmic endoillumination system comprises a self-contained power source and a laser light source powered by the self-contained power source to produce light. The system further comprises an elongated member sized for insertion into an eye and for conducting the light produced by the laser light source. 1. An ophthalmic endoillumination system comprising:a handpiece;a self-contained power source housed within the handpiece;a laser light source housed within the handpiece and powered by the self-contained power source to produce light, the laser light source comprising a plurality of lasers;an elongated member coupled to the handpiece and sized for insertion into an eye and for conducting the light produced by the laser light source; andat least one optical component positioned to receive and redirect a light beam from one of the plurality of lasers.2. The ophthalmic endoillumination system of wherein the elongated member includes a cannula.3. The ophthalmic endoillumination system of wherein the elongated member includes an optical fiber.4. The ophthalmic endoillumination system of wherein the produced light is monochromatic light.5. The ophthalmic endoillumination system of wherein the monochromatic light is green light.6. The ophthalmic endoillumination system of wherein the produced light is polychromatic light.7. The ophthalmic endoillumination system of wherein the plurality of lasers include a first laser for generating monochromatic blue light claim 1 , a second laser for generating monochromatic red light claim 1 , and a third laser for generating monochromatic green light.8. The ophthalmic endoillumination system of wherein the at least one optical component includes a coupling lens.9. The ophthalmic endoillumination system of wherein the at least one optical component includes a diffraction grating.10. The ophthalmic endoillumination system of further comprising a lens arranged to receive the produced light and transmit condensed light to the ...

OPTICAL INTRAOCULAR PRESSURE MEASURING APPARATUS AND OPERATING METHOD THEREOF

An optical intraocular pressure measuring apparatus includes a light source, an optical module, a pressure providing module, a deformation measuring module, and a processing module. The light source provides an incident light. The optical module divides the incident light into a first incident light and a second incident light and emits them to a reference object and an object to be detected through a first light path and a second light path, and receives a first reflected light signal from reference object and a second reflected light signal from the object to be detected respectively. The pressure providing module coupled with second light path provides a pressure to deform the object to be detected. The deformation measuring module measures the deformation of the object to be detected. The processing module processes the first reflected light signal and second reflected light signal to generate an intraocular pressure measurement result. 1. An optical intraocular pressure measuring apparatus , comprising:a light source, for providing an incident light;an optical module, for dividing the incident light into a first incident light and a second incident light, emitting the first incident light and the second incident light to a reference object and an object to be detected through a first light path and a second light path respectively, and receiving a first reflected light signal from the reference object and a second reflected light signal from the object to be detected respectively;a pressure providing module, coupled with the second light path, for providing a pressure to deform the object to be detected;a deformation measuring module, for measuring a deformation of the object to be detected; anda processing module, coupled to the optical module, for processing the first reflected light signal and the second reflected light signal to generate an intraocular pressure measurement result.2. The optical intraocular pressure measuring apparatus of claim 1 , wherein ...

Fundus camera and control method for the fundus camera

An apparatus including an illumination unit for illuminating an eye to be inspected with light from an observation light source or light from a photographing light source; an photographing unit for guiding reflected light from the eye to an photographing element, to record an image thereof; a calculation unit for calculating an appropriate observation or photographing light intensity based on an illumination light intensity of the illumination unit and an image signal of the photographing element; an automatic light intensity adjustment unit for causing one of the observation and photographing light sources to emit light at the calculated light intensity; and a control unit for controlling the adjustment unit according to a selected one of a mode of acquiring the fundus image and a mode of acquiring the anterior ocular image.

Ophthalmology

Apparatus for illuminating the retina of an eye. The apparatus comprising an illumination device, a lens system, wherein the illumination device and the lens system combine to provide incident illumination from an apparent point source located within the lens system. The apparatus further comprising an illumination transfer device, wherein the illumination transfer device has two foci and the apparent point source of the lens system is provided at a first focus point of the illumination transfer device and an eye is accommodated at a second focus point of the illumination transfer device, and wherein the illumination transfer device transfers the incident illumination from the apparent point source into the eye to illuminate the retina.

Intuitive techniques and apparatus for ophthalmic imaging

Apparatus and techniques can include using one or more of a portable or fixed optical system to obtain images of a desired anatomical target, such as the fundus region of a human eye. The optical system can include one or more of a laser-based focusing target, a laser-based fixation target, or a removable or adjustable alignment assembly. Such an alignment assembly can provide or allow user alignment based on using anatomical landmarks other than the fundus being imaged. One or more of the apparatus or techniques can be implemented in an optical assembly included as a portion hand-held fundus camera, such as including or using a consumer or commercial digital camera to capture an image.

EYE EXAMINING INSTRUMENT

An eye examining instrument comprises a projection device and a concave screen. The eye examining instrument furthermore comprises a convex reflector, wherein an image can be projected by the projection device onto the convex reflector and reflected by the convex reflector onto the concave screen. 1. Eye examining instrument comprising a projection device and a concave screen , characterized in that the eye examining instrument furthermore comprises a convex reflector , wherein an image can be projected by the projection device onto the convex reflector and reflected by the convex reflector onto the concave screen.2. Eye examining instrument according to claim 1 , characterized in that the projection device can be used to project an areal image.3. Eye examining instrument according to claim 1 , characterized in that the concave screen has the shape of an inner side of a spherical cup.4. Eye examining instrument according to claim 1 , characterized in that the convex reflector has the shape of an outer side of a spherical cup section.5. Eye examining instrument according to claim 3 , characterized in that the projection device has a projection axis claim 3 , which includes an angle of between 70° and 110° with the spherical cup height of the screen.6. Eye examining instrument according to claim 1 , characterized in that the projection device is arranged in the edge region of the concave screen.7. Eye examining instrument according to claim 1 , characterized in that the convex reflector is arranged in the edge region of the concave screen.8. Eye examining instrument according to claim 1 , characterized in that the convex reflector and the projection device are arranged opposite to one another in the edge region of the concave screen.9. Eye examining instrument according to claim 1 , characterized in that the convex reflector is arranged within a space spanned by the concave screen.10. Eye examining instrument according to claim 1 , characterized in that the projection ...

PERIMETER

A perimeter () having a means () for measuring the field of vision of a subject eye by successively causing visual recognition of a visual target () projected in different areas, a means () for monitoring the fixation status during field of vision measurements, an illumination means () for providing illumination to a brightness required for monitoring the fixation status of the subject eye, and a vision correcting means () for correcting the vision of a subject eye; wherein the perimeter is provided with: a lens holder part () provided to allow a corrective lens on the vision correcting means () to be attached, detached, or replaced; a lens brightness database () for displaying the brightness of the illumination means when the subject eye () is illuminated at essentially the same brightness in accordance with the mode of mounting the corrective lens that is mounted on the lens holder part (); a means () for calculating the state in which the corrective lens is mounted with regard to the vision correcting means (); a means () for calculating the brightness of the illumination means corresponding to the mode of mounting of the corrective lens, based on the lens brightness database (); and a control means () for illuminating the subject eye using the illumination means, based on the calculated brightness of the illumination means. 1. A perimeter having:a visual field measurer that measures a visual field of a subject eye when the subject eye perceives stimuli projected in order at different positions on a projection member:a fixation state monitor that monitors a fixation state of the subject eye at a time of perimetry;the fixation state monitor having an illuminator that lights the subject eye with a brightness necessary for monitoring the fixation state of the subject eye; anda visibility corrector that corrects visibility of the subject eye; the perimeter further comprising:a lens holder portion provided on the visibility corrector so as to detachably attach and ...

OPHTHALMOLOGIC APPARATUS AND CONTROL METHOD THEREFOR

To avoid, with a simple configuration and easy scanning, blocking of illumination light due to an eyelash or an eyelid of a subject, provided is an ophthalmologic apparatus, including: an optical system for scanning illumination light on an eye to be inspected in an up and down direction; a fixation target indicating unit for indicating a fixation target to the eye to be inspected at a selected position; a deflecting unit for changing an angle of the scanning for the eye to be inspected in a downward direction; and a fixation position shifting unit for shifting an indication position of the fixation target in a downward direction in accordance with the changed angle. 1. An ophthalmologic apparatus , comprising:an optical system tor scanning illumination light on an eye to be inspected in an up and down direction;a fixation target indicating unit for indicating a fixation target to the eye to be inspected at a selected position;a deflecting unit for changing an angle of a center position of the scanning for the illumination light on the eye to be inspected; anda fixation position shifting unit for shifting an indication position of the fixation target in accordance with the changed angle.2. An ophthalmologic apparatus according to claim 1 , further comprising a determination unit for determining presence and absence of blocking of the illumination light due to one of an eyelid claim 1 , and an eyelash of the eye to be inspected based on reflected and scattered light claim 1 , which corresponds to the illumination light reflected and scattered from the eye to be inspected claim 1 ,wherein the deflecting unit is configured to change the angle based on the determination performed by the determination unit.3. An ophthalmologic apparatus according to claim 2 ,wherein the determination unit is configured to determine the presence and absence of the blocking of the illumination light based on intensity of she reflected and scattered light.4. An ophthalmologic apparatus ...

PROJECTOR DEVICE, AND MEDICAL DEVICE COMPRISING THE PROJECTOR DEVICE

The aim of the present invention is to provide a projector device and a medical device with said projector device, said devices facilitating an improved projection of a two-dimensional pattern onto a plane in an optical body, in particular in an eye. 1. A projector device for projecting a two-dimensional pattern on a plane in an optical body , in particular in an eye ,with a light source which is designed to emit a light beam,with a deflecting device which is designed to deflect the light beam in order to generate the two-dimensional pattern,with an optical module which is arranged between the light source and the plane,with a control device which is designed to control the deflecting device such that the two-dimensional pattern is formed on the plane,wherein:the optical module has at least two regions with different focal lengths through which said light beam can be guided in an alternating or consecutive manner by means of the deflecting device, and the control device is designed to control the deflecting device and the light source such that the light beam is guided through the at least two regions in order to compensate for position-resolved aberrations of the optical body and to project the two-dimensional pattern on the plane such that optical aberrations are corrected.2. The projector device of claim 1 , wherein the light beam is guided through different regions of the optical module with different focal lengths for different image pixels of the two-dimensional pattern.3. The projector device of claim 1 , wherein the two-dimensional pattern is designed as an accommodation target or as an eye test character for the eye claim 1 ,4. The projector device of claim 1 , wherein the light source is designed as a laser beam source which facilitates the emission of several laser beams of different colors such that the two-dimensional pattern appears multicolored.5. The projector device of claim 1 , wherein the light beam is invisible.6. The projector device of claim 1 ...

ILLUMINATION SYSTEM FOR OPTHALMIC MICROSCOPE, AND ITS OPERATION METHOD

The present invention discloses a illumination system for ophthalmic microscope and its operation method. Light beams generated by White LED, passes through the condenser and relay system to produce illumination on retina of the eye and boundary of the illumination is determined by the aperture stop. To enhance the visualization of red glow, a Single source beam then divided into two beams using divider system contains Beam splitter and mirror. Transmitted beams and reflected beams are made to focus on circular areas coated with reflective material of virtual beam splitter which is positioned coaxially with observation system of the microscope. Focused beam then passes through the objective lens of the microscopic system. Reflected beams from retina then passes through the objective lens and reaches the observation system via Virtual Beam Splitter. 1. An illumination system for ophthalmic microscope , said system comprising:(a) a light source, said light source comprising at least one light emitting component(s), said light emitting component(s) capable of emitting light radiation, said light radiation, having wavelength in the area of the visual spectrum, such that, said wavelength is non-toxic to the eye of the patient;(b) a virtual mirror, said virtual mirror being selectively coated with reflective material;(c) an observation system.2. The illumination system for ophthalmic microscope claim 1 , as claimed in claim 1 , wherein claim 1 , light emitting component is an LED.3. The illumination system for ophthalmic microscope claim 1 , as claimed in claim 1 , wherein claim 1 , light emitting component is an LED emitting white light.4. The illumination system for ophthalmic microscope claim 1 , as claimed in claim 1 , wherein claim 1 , virtual mirror being a plane glass plate selectively coated with reflective material claim 1 , comprising of at least an area of reflective material.5. The illumination system for ophthalmic microscope claim 1 , as claimed in claim 1 , ...

OPHTHALMOLOGICAL DEVICE

An ophthalmic instrument for the application of laser radiation in a patient's eye, particularly for the examination and/or surgical laser treatment of the cornea and the lens of the eye, includes a femtosecond laser, an objective and optical assemblies. The optical assemblies are arranged in front of the objective, and selectively vary the focus position in the coordinate direction X,Y and Z either within the region of the cornea or within the region of the lens of the eye. The objective or at least one lens group is movable relative to the eye. The variation of the position of the lens group or objective shifts the focus position from the cornea to the lens of the eye and vice versa. 113.-. (canceled)14. An ophthalmic instrument for the application of laser radiation in an eye , particularly for the examination and/or surgical laser treatment of the cornea and the lens of the eye , comprising:a femtosecond laser as a radiation source for laser radiation,an objective from which a beam emerges that is focused in the direction of the eye, which are arranged in front of the objective as seen in the beam direction, and', 'which in operative connection with the objective selectively vary the focus position in the coordinate direction X,Y and Z either within the region of the cornea or within the region of the lens of the eye,, 'optical assemblies'}the objective being movable relative to the eye or having at least one lens group the position of which relative to the eye is variable,the variation of the position of the lens group or of the entire objective shifting the focus position from the region of the cornea to the region of the lens of the eye and vice versa.151. The ophthalmic instrument as claimed in claim , further comprising:in front of the objective a lens of negative refractive power that can be moved in the beam direction and by whose movement the focus position in the coordinate direction Z can be varied, anda deflecting device in front of the objective that ...

System and method for corneal irradiation

A device and method for use thereof to illuminate a visual system of a subject includes a light-transforming optical element configured to transform a substantially collimated beam of light into light having a diverging spatial distribution. Optionally, light having such spatial distribution includes a plurality of diverging beams of light. An imaging system mechanically cooperated with the light-transforming optical element is configured such as to form an image of the light-transforming optical element at an image surface associated with the eye that is distant from the retina. The irradiance level at the image surface exceeds that at the retina. Optionally, the image surface adjoins or includes the cornea. The imaging system may include an optical system containing refractive and/or reflective optical elements.

Ophthalmological device

An ophthalmological device ( 1 ) comprises an optical transmission system ( 5 ) for transmitting femtosecond laser pulses to a projection objective ( 3 ) for projecting the femto-second laser pulses onto or into eye ( 2 ) tissue. The ophthalmological device ( 1 ) further comprises an objective changing device ( 4 ) for changing and connecting the projection objective ( 3 ) to the optical transmission system ( 5 ). The objective changing device ( 4 ) comprises more than one different projection objectives ( 3 ) connected mechanically with each other, and the objective changing device ( 4 ) is configured to convey one of to the projection objectives ( 3 ) to the optical transmission system ( 5 ) for connecting the respective projection objective ( 3 ) to the optical transmission system ( 5 ). The objective changing device ( 4 ) makes it possible to adapt the laser-based ophthalmological device ( 1 ) for new applications without the need for extensive reconfigurations and/or costly vario-lense objectives.

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 ...

DIGITAL FUNDUS CAMERA

Digital fundus cameras including an objective lens and a digital imager for capturing digital retinal images. The digital fundus cameras include an annular LED illumination arrangement having an annular LED illuminator with a ring of spaced apart individual masked LEDs, an annular folded illumination optical train and a multiple stage stray illumination trap arrangement for capturing stray illumination. The annular LED illumination arrangement can optically include a glare spot masking arrangement. 1. A digital fundus camera for capturing a digital retinal image of a retinal region of an eye through the eye's pupil , the pupil having an innermost pupillary central area and an outermost pupillary annular surround peripheral to the innermost pupillary central area , the camera comprising:(a) a rigid tubular digital fundus camera housing having a leading housing end, a trailing housing end and an inside housing surface; said objective lens having an optical axis and a working distance from the eye for imaging the pupil as an imaged pupil at a conjugate pupillary plane and the retinal region as an imaged retinal region at a conjugate retinal plane,', 'said objective lens imaging the innermost pupillary central area as an innermost pupillary central area image and the outermost pupillary annular surround as an outermost pupillary annular surround image peripheral to said innermost pupillary central area image;, '(b) an objective lens at said leading housing end,'} (i) an annular LED illuminator having a ring of spaced apart individual masked LEDs each emitting a wide solid angle illumination beam co-directional with said optical axis and spaced apart therefrom,', 'ii) an annular folded illumination optical train including a primary focusing reflector for reflecting illumination from said LED illuminator towards a secondary reflector for reflecting illumination towards said objective lens,', 'iii) an annular arrangement of refractive mini-lenses in registration with said ...

METHODS AND SYSTEMS FOR PROVIDING WAVEFRONT CORRECTIONS FOR TREATING CONDITIONS INCLUDING MYOPIA, HYPEROPIA, AND/OR ASTIGMATISM

Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects. 1. (canceled)2. A wearable ophthalmic device comprising:an augmented reality head-mounted display system configured to pass light from the world through the display and into an eye of a person wearing the head-mounted system;a light source configured to output light for propagation into an eye of the person to form an image in the eye; andan adaptable optics element configured to apply a wavefront correction to the light forming the image based on an optical prescription for the eye.3. The device of claim 2 , wherein the adaptable optics element comprises a variable focus element.4. The device of claim 3 , wherein the variable focus element comprises a membrane mirror.5. The device of claim 4 , further comprising:one or more electrodes coupled to the membrane mirror; anda control system configured to selectively control the one or more electrodes to modify a shape of the membrane mirror based on a corneal shape of the eye.6. The device of claim 2 , further comprising a processor configured to modify image information provided to the light source for output as the light propagated into the eye claim 2 , wherein the image information is modified to provide a wavefront correction based on an optical prescription for the eye.7. A method for addressing vision defects of a person wearing a head mounted display system claim 2 , the method comprising:identifying an optical prescription of the person;producing an image using a display in the head mounted display system;applying wavefront ...

AUGMENTED AND VIRTUAL REALITY DISPLAY SYSTEMS AND METHODS FOR DIAGNOSING USING OCCLUDER

Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects. 1. (canceled)2. A wearable augmented reality device comprising:an augmented reality head-mounted ophthalmic system comprising an augmented reality display platform configured to pass light from the world into at least one eye of a person wearing the ophthalmic system;a light source configured to output light for propagation into the eye of the person to form an image in the eye; anda user interface configured to receive input from the person,wherein the ophthalmic system is configured to occlude one or more selectable portions of a field of view of the person's eye and to receive input from the person regarding the wearer's vision through the user interface.3. The device of claim 2 , wherein the wearable augmented reality device is configured to occlude a central region of the field of view.4. The device of claim 3 , wherein the wearable augmented reality device is configured to determine whether occluding the central region improves the person's vision of the image claim 3 , and conclude a presence of a visual defect in the eye of the person based on the determined improvement in the person's vision.5. The device of claim 2 , wherein the wearable augmented reality device is configured to occlude a peripheral region of the field of view.6. The device of claim 2 , wherein the wearable augmented reality device is configured to occlude the one or more selectable portions of the field of view of the person's eye digitally.7. The device of claim 2 , wherein the wearable augmented ...

METHODS AND SYSTEMS FOR DIAGNOSING AND TREATING CHROMATIC ABERRATIONS OF AN EYE

Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects. 1. (canceled)2. A wearable augmented reality device , the device comprising:an augmented reality head-mounted ophthalmic system comprising a wearable augmented reality display platform configured to pass light from the world into an eye of a person wearing the head-mounted system, the augmented reality display platform comprising optics configured to output light to form an image in the eye,wherein the augmented reality display platform is configured to output a first color component of the image with wavefront divergence corresponding to a first depth plane and a second color component of the image with wavefront divergence corresponding to a second depth plane different than the first depth plane to compensate for longitudinal chromatic aberration of the person's eye.3. The device of claim 2 , wherein the augmented reality display is configured to output a third color component of the image with wavefront divergence corresponding to a third depth plane different than the first and second depth planes to compensate for longitudinal chromatic aberration of the person's eye.4. The device of claim 2 , further comprising a user interface for receiving a prescription for the longitudinal chromatic aberration.5. The device of claim 2 , wherein the augmented reality head-mounted ophthalmic system is configured to conduct an eye exam by automatically varying a focus of light forming the image to provide incremental changes in optical prescription.6. The device of claim 5 , further ...

HANDHELD OPHTHALMIC LASER SYSTEM WITH REPLACEABLE CONTACT TIPS AND TREATMENT GUIDE

In some embodiments, an ophthalmic laser system may be provided that does not include a traditional laser console. Instead, the treatment device may be configured to house the treatment light source within the device handle. Additionally, in some embodiments, the handheld treatment device may include a user interface, such as dials and buttons, for adjusting various parameters of the therapeutic light. With certain embodiments, the self-contained handheld treatment device may be operated independent of an AC power source. For example, in some embodiments, the handheld treatment device may be battery powered. Additionally, the handheld treatment device may be disposable or may utilize replaceable distal tips in certain embodiments. Certain embodiments may be particularly designed for transscleral cyclophotocoagulation. Also, treatment guides are provided that may be configured to couple with a treatment device to align the device with a target tissue of the eye. 1. A handheld glaucoma treatment device for delivering therapeutic light toward an eye of a patient , the handheld glaucoma treatment device comprising:a treatment device housing defining a handle for grasping by a hand of a user having a proximal end and a distal end opposite the proximal end;a therapeutic light source disposed within the treatment device housing;optics disposed within the treatment device housing configured to direct therapeutic light generated by the therapeutic light source toward the distal end of the treatment device housing;a replaceable contact tip having a proximal end and a distal end, the proximal end of the replaceable contact tip configured to be detachably coupled with the distal end of the treatment device housing and the distal end of the replaceable contact tip comprising a contact surface configured to couple with a surface of the eye, the replaceable contact tip configured to receive therapeutic light generated by the therapeutic light source via the optics housed within ...

Augmented and virtual reality display systems and methods for determining optical prescriptions

Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.

Methods and systems for diagnosing binocular vision conditions

Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.

Methods and systems for diagnosing eyes using aberrometer

Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.

METHODS AND SYSTEMS FOR PERFORMING SLIT LAMP EXAMINATION

Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects. 1. (canceled)2. A wearable augmented reality device comprising:an augmented reality head-mounted ophthalmic system comprising an augmented reality display platform configured to pass light from the world into an eye of a wearer wearing the head-mounted ophthalmic system;an optical source configured to project an illumination beam of light into the eye of the wearer to illuminate an anterior or posterior portion of the eye, a cross-sectional beam shape of the illumination beam configured such that a dimension of the cross-sectional beam shape along a superior-inferior direction of the eye is greater than a dimension of the cross-sectional beam shape along a nasal-temporal direction of the eye; andan imaging system configured to capture an image of the illuminated portion of the wearer's eye to perform a slit lamp examination to determine health of the eye.3. The device of claim 2 , wherein the optical source is configured to project the illumination beam onto a location on a surface of the eye at an angle with respect to a normal to the surface at the location claim 2 , wherein the angle is between about ±10-degrees and about ±90-degrees.4. The device of claim 3 , wherein the illumination beam is incident the location along an axis intersecting the eye and passing through the pupil.5. The device of claim 2 , wherein the illumination beam has a width along a temporal-nasal axis of the wearer's eye claim 2 , wherein the width is between about 25 microns and about 1.0 mm.6. The ...

METHODS AND SYSTEMS FOR DIAGNOSING EYE CONDITIONS SUCH AS RED REFLEX USING LIGHT REFLECTED FROM THE EYES

Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects. 1. (canceled)2. A wearable augmented reality device comprising:an augmented reality head-mounted ophthalmic system comprising an augmented reality display platform configured to pass light from the world into an eye of a wearer wearing the head-mounted ophthalmic system, the eye comprising a retina and a cornea;a light source configured to project light into the eye of the wearer, at least a portion of the light reflecting off at least a portion of the eye so as to produce a reflection; anda camera configured to capture an image of the reflection, the device being configured to perform a diagnostic test of the wearer's eye to detect abnormalities of the eye.3. The device of claim 2 , wherein the light source is configured to direct the light into the eye along the normal line of sight of the eye.4. The device of claim 2 , wherein the light source is configured to direct the light into the eye at a first angle at a first time and at a second different angle at a second time.5. The device of claim 2 , wherein the light source is configured to project the light to a first portion of the wearer's eye at a first time and to project the light to a second different portion of the wearer's eye at a second time.6. The device of claim 2 , wherein the light source comprises a display forming part of the augmented reality display platform.7. The device of claim 6 , wherein the display comprises a fiber scanning display.8. The device of claim 2 , wherein the camera comprises an eye tracking ...

METHODS AND SYSTEMS FOR DETERMINING INTRAOCULAR PRESSURE

Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects. 1. (canceled)2. A wearable augmented reality device comprising:an augmented reality head-mounted ophthalmic system comprising a wearable augmented reality display platform configured to pass light from the world into an eye of a wearer wearing the head-mounted system, the eye comprising a cornea, the augmented reality head-mounted ophthalmic system configured to apply a force to the cornea of the eye; anda sensor configured to determine applanation of the cornea,wherein the head-mounted ophthalmic system is configured to determine intraocular pressure of the eye based on the applanation of the cornea.3. The device of claim 2 , wherein the head-mounted ophthalmic system is configured to apply a pulse of air to flatten the cornea.4. The device of claim 2 , wherein the head-mounted ophthalmic system is configured to apply mechanical force to the cornea of the eye through an eyelid of the wearer.5. The device of claim 4 , wherein the head-mounted ophthalmic system comprises a transducer.6. The device of claim 2 , wherein the sensor utilizes ultrasonic range imaging.7. The device of claim 2 , wherein the sensor utilizes photoacoustic imaging.8. The device of claim 2 , wherein the sensor comprises an imaging head.9. The device of claim 8 , wherein the imaging head comprises an interferometry 3D imaging head.10. The device of claim 2 , further comprising a light source configured to project beams of light into the wearer's eyes.11. The device of claim 2 , wherein the display platform ...

PATIENT INTERFACE FOR OPHTHALMOLOGIC DIAGNOSTIC AND INTERVENTIONAL PROCEDURES

An ophthalmic system may comprise an imaging device having a field of view oriented toward the eye of the patient; a patient interface housing defining a passage therethrough, having a distal end coupled to one or more seals configured to be directly engaged with one or more surfaces of the eye of the patient, and wherein the proximal end is configured to be coupled to the patient workstation such that at least a portion of the field of view of the imaging device passes through the passage; and two or more registration fiducials coupled to the patient interface housing in a predetermined geometric configuration relative to the patient interface housing within the field of view of the imaging device such that they may be imaged by the imaging device in reference to predetermined geometric markers on the eye of the patient which may also be imaged by the imaging device. 127.-. (canceled)28. A system for ophthalmic intervention on an eye of a patient having temporary geometric markers thereon indicative of the orientation of an astigmatic axis of the patient's eye , comprising:a. an imaging device having a field of view oriented toward the eye of the patient, the imaging device configured for generating 3-dimensional images of the field of view;b. a patient interface housing having proximal and distal ends and defining a passage therethrough, wherein the distal end is coupled to one or more seals around a periphery of the passage configured to be directly engaged with an exterior surface of the eye of the patient and having a size sufficient to render visible the temporary geometric markers on the eye in that the temporary geometric markers are within the field of view of the imaging device, and wherein the proximal end is configured to be coupled to the patient workstation such that at least a portion of the field of view of the imaging device passes through the passage;c. three or more registration fiducials formed on an inner annulus of the patient interface housing ...

LENTICULAR LASER INCISION FOR LOW MYOPIA AND/OR HYPEROPIA PATIENTS

Embodiments generally relate to ophthalmic laser procedures and, more particularly, to systems and methods for lenticular laser incisions to form a top lenticular incision, a bottom lenticular incision of a lens in the subject's eye, an added shape between the top and bottom incisions where the added shape has no corrective power and a transition ring bisecting both the top and bottom lenticular incisions. 1. A method for creating lenticular incisions to correct low myopic/hyperopic patients using an ophthalmic surgical laser system , the method comprising:generating a pulsed femtosecond laser beam;delivering the pulsed femtosecond laser beam into a stroma of a cornea;deflecting, by an XY-scan device, the pulsed laser beam;modifying, by a Z-scan device, a depth of a focus of the pulsed laser beam; and a top lenticular incision in the stroma of the cornea, having a circumferential periphery;', 'a bottom lenticular incision in the stroma of the cornea, symmetric to the top lenticular incision, having a circumferential periphery;', 'a shape with no correction power to space the top lenticular incision and the bottom lenticular incision; and', 'a transition ring or side cut incision intersecting the circumferential periphery of the top lenticular incision and the circumferential periphery of the bottom lenticular incision., 'controlling, by a controller, the XY-scan device and the Z-scan device to form an incised lenticule in the cornea, by incising,'}2. The method of wherein the shape with no correction power is determined based on the amount of correction of hyperopia and/or myopia needed.3. The method of wherein the incised lenticule is at least 40 μm thick at its center.4. The method of wherein low hyperopic/myopic patients are 0.5 diopters to 3.0 diopters.5. The method of wherein the transition ring incision has a top edge and a bottom edge claim 1 , and the top edge and the bottom edge have the same circumference.6. The method of wherein the transition ring has a ...

EYE IMAGING IN HEAD WORN COMPUTING

Aspects of the present invention relate to methods and systems for imaging, recognizing, and tracking of a user's eye that is wearing a HWC. Aspects further relate to the processing of images reflected from the user's eye and controlling displayed content in accordance therewith. 1. (canceled)2. A method comprising:receiving, via a first side of a partially reflective and partially transmissive surface disposed in-line with transfer optics, image light produced by a display of a wearable head device;transmitting, via a second side of the partially reflective and partially transmissive surface, the image light to an eye of a user of the wearable head device, wherein the second side of the partially reflective and partially transmissive surface is different from the first side of the partially reflective and partially transmissive surface;receiving eye-image light from the eye via the second side of the partially reflective and partially transmissive surface, the eye-image light comprising image light reflected in the eye;reflecting, via the partially reflective and partially transmissive surface, the eye-image light toward a camera; andcapturing, via the camera, the eye-image light.3. The method of claim 2 , wherein the camera is disposed within a dark light trap of the wearable head device.4. The method of claim 3 , further comprising capturing claim 3 , via the dark light trap claim 3 , off-pixel light.5. The method of claim 2 , wherein the display comprises a front-lit reflective display.6. The method of claim 2 , wherein the display comprises an emissive display.7. The method of claim 2 , wherein:the display is positioned to face the first side of the partially reflective and partially transmissive surface, andthe partially reflective and partially transmissive surface is positioned such that the second side of the partially reflective and partially transmissive surface faces the eye.8. The method of claim 7 , wherein the camera is positioned to face the second ...

Microscopy System and Method for Imaging Phase Objects

Disclosed is a microscope system for imaging an object within an eye, wherein the object is a phase object. The microscope system includes imaging optics for generating images of an object plane of the imaging optics in an image plane of the imaging optics by using imaging light. The object plane is optically conjugate to the image plane. The microscope system is configured to store focus shift data representing a focus shift. The focus shift is generated by a different effect on the imaging light generated by phase objects as compared to amplitude objects. The microscope system is configured to image the object depending on the focus shift data. 1. A microscope system for imaging an object within an eye , wherein the object is a phase object:wherein the microscope system comprises imaging optics for generating images of an object plane of the imaging optics in an image plane of the imaging optics by using imaging light; wherein the object plane is optically conjugate to the image plane;wherein the microscope system is configured:to store focus shift data representing a focus shift, wherein the focus shift is generated by a different effect on the imaging light generated by phase objects as compared to amplitude objects; andto image the object, depending on the focus shift data.2. The microscope system according to claim 1 , wherein the microscope system is configured to adjust claim 1 , depending on the focus shift data claim 1 , a distance between the object plane and the object so that a focus plane of the object is located in the image plane.3. The microscope system according to claim 2 , wherein the adjusting of the distance is further performed depending on an object distance of a reference object claim 2 , which is an amplitude object.4. The microscope system according to claim 1 , wherein the microscope system is configured to:generate reference object image data, which represent an image of a reference object, which is an amplitude object; and toadjust a ...

Examination Instrument

Light from an exit pupil of an illumination unit is directed to a beam splitter which directs the light to an objective. The retina is illuminated, if a real image of the exit pupil of the illumination unit and a real image of an entrance pupil of a camera unit are formable in a position ranging from the cornea to the backside of the crystalline lens with the light. The objective forms a real intermediate image of the retina between the objective and the camera unit. The beam splitter directs the light from the retina to the camera unit, while causing the path of the illumination and the path of the imaging to deviate for non-overlapping images of the exit pupil and the entrance pupil in the crystalline lens. A relay lens system forms a real image of the intermediate image on a detecting component with the light reflected from the retina for transforming the image into an electric form to be shown on a screen. 1. An apparatus for imaging an eye , comprising:an illumination unit;a beam splitter;an objective;a relay lens system;a fixation target unit; anda camera unit,the illumination unit comprising an optical radiation source, the illumination unit being configured to direct optical radiation of the source from an exit pupil of the illumination unit to the beam splitter,the beam splitter being configured to direct the optical radiation to the objective for illuminating the retina of an eye,the fixation target unit being configured to illuminate the retina of the eye with at least one fixation target image with visible optical radiation;the objective being configured to form a real intermediate image of the retina between the objective and the camera unit with the optical radiation reflected from the retina, wherein a real image of the exit pupil of the illumination unit and a real image of an entrance pupil of the camera unit are formable in the position ranging from the cornea to the backside of the crystalline lens of an eye,the beam splitter residing between the ...

DEVICE AND METHOD FOR PLACING A PHOROPTER HEAD IN A HORIZONTAL POSITION

Disclosed is a device for placing a phoropter head in a horizontal position in order to optimize the measurement of the visual acuity of a patient, and to a method for placing a phoropter head in a horizontal position. The device and method help performing a correct measurement of a patient's visual acuity by allowing the fine adjustment of the phoropter head horizontality and alerting when its position is not correct. 11. Device for placing a phoropter head () in a horizontal position , comprising:{'b': 12', '2', '1', '3, 'a module () for determining an angular deviation (α) between a main plane (P) of said phoropter head () and a reference horizontal plane (P),'}{'b': 8', '9, 'a sensory indicator (, ) adapted to emit a sensory signal,'}{'b': 13', '8', '9', '12, 'a command unit () programmed to activate said sensory indicator (,) as a function of the angular deviation (α) determined by said module () in order toprovide an adjustment sensory signal as long as said angular deviation (α) is outside a first deviation range including the deviation of zero value, said first deviation range having a width superior or equal to zero, and,after said angular deviation (α) has entered said first deviation range, provide a stop sensory signal as long as said angular deviation (α) remains within a second deviation range, said second deviation range encompassing said first deviation range.2138912. The device according to claim 1 , wherein the command unit () is programmed to activate said sensory indicator ( claim 1 ,) as a function of the angular deviation (α) determined by said module () in order to claim 1 , after said angular deviation (α) has entered said first deviation range:provide a stop sensory signal if the current value of the angular deviation (α) is inside the second deviation range, said stop sensory signal being provided even if the current value of the angular deviation (α) is outside the first deviation range, andprovide an adjustment sensory signal if the ...

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 ...

APPARATUS AND METHOD FOR DETERMINING AN EYE PROPERTY

An apparatus, and corresponding method, for determining a property of an eye includes a housing with a proximal port that receives an eye and also light from the eye. The housing further includes a distal port, and the two ports together form a visual channel providing an open view to enable the eye to see target indicia external to and spaced away from the housing. A wavefront sensor within the housing is configured to receive the light from the eye via the optical path and to measure a wavefront of the light. A determination module determines an objective refractive correction based on the wavefront and predicts a subjective refractive preference of a person having the eye based on the objective refractive correction. Embodiments can be handheld, and binocular, and predict subjective refraction based on demographic and other information. 1. An apparatus for determining a property of an eye , the apparatus comprising:a housing including a proximal port, the proximal port configured to receive an eye and to receive light from the eye,the housing further including a distal port, the proximal and distal ports together forming a visual channel from the proximal port through the distal port, the visual channel providing an open view to enable the eye to see target indicia external to and spaced away from the housing;a wavefront sensor within the housing, the wavefront sensor being configured to receive the light from the eye via the optical path and to measure a wavefront of the light; anda determination module configured to determine an objective refractive correction based on the wavefront, the determination module further configured to predict a subjective refractive preference of a person having the eye based on the objective refractive correction.2. The apparatus of claim 1 , wherein the determination module is further configured to predict the subjective refractive preference based on a demographic or physical attribute of a person having the eye.3. The apparatus ...

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 ...

IN-VIVO RETINAL IMAGING SYSTEM

An optical imaging system () for in-vivo retinal imaging, the system () comprising: 1. An optical imaging system for in-vivo retinal imaging , the system comprising:an optical source for generating incoherent light in a plurality of wavelength bands;an optical imaging sub-system configured to split light from said optical source into a plurality of beams, to introduce a path difference between said beams of light, and recombine those beams to form interference fringes that are imaged on a subject; andan image capture device configured to capture light from the subject being imaged, and to form an image of said subject.235.-. (canceled) This application is a continuation of U.S. patent application Ser. No. 13/882,596, filed Aug. 5, 2013, which is a national stage application under 35 U.S.C. 371 of PCT Application No. PCT/EP2011/069375 having an international filing date of 3 Nov. 2011, which designated the United States, which PCT application claimed the benefit of Great Britain Application No. 1018560.1 filed 3 Nov. 2010, each of which are incorporated herein by reference in their entirety.This invention relates to in-vivo retinal imaging systems.To facilitate a proper understanding of the teachings of the present invention, particular embodiments will be described below with particular reference to in-vivo imaging of the retina of a subject.A variety of different devices have previously been proposed for in-vivo imaging of a subject's eye. Such devices are typically used by a clinician or physician to look for abnormalities (congenital or acquired) and symptoms of disease.One such previously proposed device is the so-called “ophthalmoscope”. Commonly available opthalmoscopes range from relatively simple pocket-sized opthalmoscopes such as the Welch Allyn PocketScope™ Ophthalmoscope, to more complex devices such as the Welch Allyn Panoptic™ Ophthalmoscope (each of which are available from Welch Allyn Inc., Corporate Headquarters, 4341 State Street Road, Skaneateles ...

Augmented and virtual reality display systems and methods for delivery of medication to eyes

Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.

EYE IMAGING APPARATUS WITH A WIDE FIELD OF VIEW AND RELATED METHODS

An eye imaging apparatus can include a housing, an optical imaging system in the housing, and a light source in the housing to illuminate an eye. The optical imaging system can include an optical window at a front end of the housing with a concave front surface for receiving the eye as well as an imaging lens disposed rearward the optical window. The apparatus can comprise a light conditioning element configured to receive light from the light source and direct said light to the eye. The apparatus can further include an image sensor in the housing disposed to receive an image of the eye from the optical imaging system. In various embodiments, light conditioning element includes at least one multi-segment surface. In some embodiments, the housing is provided with at least one hermitic seal, for example, with the optical window. In some embodiments, time sequential illumination is employed. 1. An eye imaging apparatus comprising:a housing;a light source disposed inside the housing to illuminate an eye; an optical window at a front end of the housing with a concave front surface for receiving the eye;', 'an imaging lens disposed rearward the optical window and optically aligned with the optical window along an optical imaging path, said optical imaging system having an optical axis;, 'an optical imaging system comprisinga light conditioning element in the housing comprising at least one multi-segment surface positioned behind the peripheral portion of the optical window, configured to receive light from the light source and direct said light to the eye; andan image sensor in the housing disposed to receive an image of the eye from the optical imaging system.2. The eye imaging apparatus in claim 1 , wherein the front concave surface of the optical window has a radius of curvature closely matching a radius of curvature of a cornea of the eye of a human.3. The eye imaging apparatus in claim 1 , wherein the front concave surface of the optical window has a radius of ...

SYSTEM AND METHOD FOR PERFORMING OBJECTIVE PERIMETRY AND DIAGNOSIS OF PATIENTS WITH RETINITIS PIGMENTOSA AND OTHER OCULAR DISEASES

A system and method for determining a state of health of an eye using a pupillometer is provided comprising an ocular fixture, a testing compartment, a camera, and a controller. The testing compartment comprises a plurality of chromatic beam emitters arranged about a visual field. The ocular fixture is positioned to facilitate exposure of light sensitive ocular structures of the eye to a chromatic stimuli. The camera is positioned to record temporal pupil responses of the eye. The controller controls emission wavelength, intensity, and duration of the chromatic beam emitters. The controller processes temporal pupil response data to generate signals representative of the eye positioned at the ocular fixture in response to the chromatic stimuli at a plurality of locations in the visual field. The method comprises driving the chromatic beam emitters with the controller to generate signals using chromatic stimuli and determining the state of health of the eye. 115.-. (canceled)16. A method for determining a state of health of an eye using a pupillometer , wherein:the pupillometer comprises an ocular fixture, a testing compartment, at least one camera, and a controller;the testing compartment comprises a plurality of chromatic beam emitters arranged about a visual field of the pupillometer;selected ones of the chromatic beam emitters are structurally configured to generate chromatic stimuli;the ocular fixture is positioned to facilitate exposure of light sensitive ocular structures of the eye to the chromatic stimuli of the chromatic beam emitters;the camera is positioned to record temporal pupil contraction of the eye in response to the chromatic stimuli of the chromatic beam emitters;the controller controls emission wavelength, intensity, and duration of the chromatic beam emitters;the controller processes temporal pupil contraction data recorded by the camera to generate latent maximum contraction velocity (LMCV) signals and percentage of pupil contraction (PPC) or ...

FUNDUS IMAGING APPARATUS WITH TRANS-PARS-PLANAR ILLUMINATION

Methods and apparatus are described for illuminating the fundus of an eye for wide-angle fundus photography. The present disclosure delivers light through a pars planar area of the eye for illuminating the interior of the eye, or through an eyelid and a pars plana of the eye. Trans-pars-planar illumination frees the entire pupil for imaging and therefore eliminates need for pupil dilation or complex balancing between illumination and imaging in previous wide-angle fundus photography based on trans-pupillary illumination. Additionally, the present disclosure discloses, when an optical fiber bundle multiple-channel trans-pars-planar illuminator placed adjacent to the pars plana, at least one optical fiber in the optical fiber bundle aligns with the pars plana to deliver light through the pars plana into the fundus of the eye, thus eliminating the previous problem of having to move an optical fiber to search a location of the pars plana. 1. An apparatus for performing fundus imaging , the apparatus comprising:a trans-pars-planar illuminator comprising a light source and a multiple-channel light delivery element, for delivering light into a fundus of an eye through a pars plana and an adjacent area of the eye;an optical imaging system comprising optical elements and an optical image sensor, for collecting scattered and reflected light from the fundus illuminated by the trans-pars-planar illuminator and forming an image of the fundus through a pupil of the eye;a control unit comprising a light switch device and a digital processor, for controlling the trans-pars-planar illuminator and the optical imaging system, and for processing fundus images to optimize trans-pars-planar illumination and image formation.2. The apparatus according to claim 1 , wherein the trans-pars-planar illuminator comprises:a light source; delivering illumination light emitted from a light source into an input end of the optical fiber bundle comprising at least a first optical fiber and a second ...

PORTABLE DEVICE FOR VISUAL FUNCTION TESTING

The present invention relates to a device and method for vision screening, impairment and concussion detection. The device for visual function testing comprises optic components, projection optics and an image capture component. 1. A device for visual function testing comprising optic components , projection optics and an image capture component.2. The device of claim 1 , wherein the optical components comprise one or more means to generate an image and/or to provide illumination.3. The device of claim 2 , wherein the one or means are selected from the group consisting of LED displays claim 2 , Organic LED (OLED) displays claim 2 , Liquid Crystal Displays (LCD) claim 2 , micro-electro-mechanical-systems (MEMS) based microprojectors claim 2 , quantum dot displays and combinations thereof may be used to generate the image and/or provide illumination.4. The device of claim 2 , wherein separate means are used to generate the image and/or provide illumination are used for each eye.5. The device of claim 2 , wherein a single means is used in combination with additional components for display for both eyes claim 2 , and wherein said additional components comprise prism(s) claim 2 , mirror(s) and/or beam splitter(s).6. The device of claim 1 , wherein said image capture component is configured to capture images of both eyes simultaneously.7. The device of claim 1 , wherein said image capture component comprises one or more digital cameras.8. The device of claim 1 , further comprising projection optics which provide magnification/minification of the generated image for the eye; focuses the image at a selected distance; and/or limit the field of view (area of projection) so it is limited to the targeted eye.9. The device of claim 8 , wherein the projection optics comprise a focussing element. The present invention relates generally to the field of ocular examination. More particularly, the present invention relates to a device and method for vision screening, impairment and ...

METHODS AND SYSTEMS FOR VISION MONITORING

An apparatus for measuring a visual field of a subject can include an enclosure, wherein the enclosure surrounds at least one eye of the subject; a display comprising a distance from the eye of the subject to a surface of the display, wherein the distance is substantially constant along a portion of the surface of the display; and a plurality of light sources disposed on the display, wherein the light sources comprise a plurality of stimuli for measuring the visual field of the subject, wherein the apparatus may be worn by the subject. 1. An apparatus for measuring visual function across a visual field of a subject comprising:an enclosure, wherein the enclosure is configured to surround at least one eye of the subject;a display comprising a surface, wherein the surface is configured to be spaced a distance from the eye of the subject, wherein the distance is substantially constant along a portion of the surface of the display; anda plurality of light sources disposed on the display, wherein the light sources comprise a plurality of stimuli for measuring the visual field of the subject,wherein the apparatus is configured to be worn by the subject.2. The apparatus of claim 1 , wherein the surface of the display comprises a dome shape claim 1 , a shape which is hemispherical claim 1 , or a shape which is a portion of a surface of the sphere.3. (canceled)4. (canceled)5. The apparatus of claim 1 , wherein the apparatus is monocular or binocular.6. (canceled)7. The apparatus of claim 1 , wherein the apparatus is light sealed.8. The apparatus of claim 1 , wherein the apparatus is semitransparent.9. The apparatus of claim 1 , wherein the display comprises a plurality of displays.10. (canceled)11. The apparatus of claim 1 , wherein the display does not comprise a back-light.12. The apparatus of claim 1 , wherein the plurality of light sources is stationary relative to the surface of the display.13. The apparatus of claim 1 , wherein the plurality of light sources is mobile ...

BINOCULAR RETINAL IMAGING DEVICE, SYSTEM, AND METHOD FOR TRACKING FIXATIONAL EYE MOTION

A binocular scanning laser ophthalmoscope (SLO) is used to track the fixational eye movement of each of the eyes of a subject. The binocular SLO may include right eye optics for imaging a portion of the retina of the right eye and left eye optics for imaging a portion of the retina of the left eye. Shifts in the imaged portion of the retina with respect to a reference image of the retina may be used to measure and track eye movement. The right eye optics and left eye optics may be separate imaging paths, each with its own bi-directional MEMS scanning mirror and Keplerian telescope. The use of the MEMS scanning mirrors minimizes the size and weight of the binocular SLO. 1. A binocular system , comprising a binocular scanning laser ophthalmoscope (SLO) , the binocular SLO comprising:right eye optics configured to image a retina of a right eye of a subject, the right eye optics comprising: a first fiber collimator configured to receive the first beam from the first AOM;', 'a first beam splitter configured to pass the first beam from the first fiber collimator to a first MEMS device;', 'the first MEMS device configured to scan the first beam along a first and second dimension;', 'a first lens configured to focus the first beam onto a first mirror;', 'the first mirror configured to direct the first beam towards a second lens;', 'the second lens configured to focus the first beam into the right eye of the subject, the second lens further configured to focus the first beam reflected from the retina of the right eye of the subject onto the first mirror;', 'the first mirror further configured to direct the first beam towards the first lens;', 'the first lens further configured to focus the first beam onto the first MEMS device;', 'the first MEMS device further configured to de-scan the first beam onto the first beam splitter; and', 'the first beam splitter further configured to reflect the first beam towards a first detector assembly; and, 'a first acousto-optic modulator ( ...

Speckle Interferometric Method and System for Detecting a Movement of a Surface

A method and a system for detecting a movement of a surface on an irradiated sample involves a light source for irradiating the surface with a coherent light beam, a detector for detecting variations caused by the movement in a speckle pattern produced by reflections of the light beam at the surface, selecting a single speckle from the speckle pattern, and detecting the variations at the selected speckle. 127-. (canceled)28. A method for treatment of an eye , comprising:irradiating a surface of the eye with a coherent light beam, wherein a movement of the surface is caused by the irradiating light beam;detecting variations caused by said movement in a speckle pattern produced by reflections of said light beam at said surface;selecting a single speckle from said speckle pattern; anddetecting said variations at the selected speckle.29. The method of claim 28 , wherein one or more detectors are used and each detector detects the variations at a single speckle.30. The method of claim 28 , wherein the irradiating light beam and the reflected light beam are guided along a confocal light path.31. The method of claim 28 , wherein the irradiating light beam and the reflected light beam are guided by a multi-mode optical fiber.32. The method of claim 28 , wherein the reflected light beam is split from the irradiating light beam for the detection of said variation at the selected speckle.33. The method of claim 28 , wherein variations of the intensity of the reflected light at the selected speckle are detected.34. The method of claim 28 , wherein a frequency of the detected variation at the selected speckle is correlated to the velocity of the movement at the irradiating surface.35. The method of claim 28 , wherein one or more test irradiations causing the movement of the irradiated surface are performed and the energy of the irradiating light beam is determined when a predetermined variation at the selected speckle occurs.36. The method of claim 28 , wherein an intensity of ...

METHOD FOR ESTIMATING A DISTANCE SEPARATING A PAIR OF GLASSES AND AN EYE OF THE WEARER OF THE PAIR OF GLASSES

A method for estimating an eye/spectacles distance (VG) includes the steps of: 113-. (canceled)14. A method for estimating an eye/spectacles distance , between a characteristic plane of a pair of spectacles and a characteristic point of an eye of a wearer of said pair of spectacles , with the help of a determination device comprising an image sensor , comprising steps:a) of acquisition by the image sensor of at least two distinct images of at least one part of the head of the wearer, in which the head of the wearer exhibits various angular positions with respect to the image sensor around a pivoting axis which is substantially parallel to said characteristic plane and which is substantially transverse to the optical axis of the image sensor, 'said estimating method also comprising steps:', 'b) of determination, for each image acquired, of an angle of inclination of the head of the wearer with respect to the image sensor, measured between the optical axis of the image sensor and a plane tied to the head of the wearer which is substantially parallel to said pivoting axis and substantially orthogonal to said characteristic plane,'}c) of acquisition of at least two simulated values of the eye/spectacles distance sought,d) of calculation, for each image acquired and with each simulated value acquired, of a morphological distance between the characteristic point of the eye of the wearer and the plane tied to the head of the wearer, having regard to said angle of inclination, ande) of selection, from among the simulated values of the eye/spectacles distance sought, of the value closest to the eye/spectacles distance of the wearer, as a function of the head/plane distances calculated in step d).15. The estimating method as claimed in claim 14 , in which claim 14 , in step a) claim 14 , said pivoting axis coincides with the longitudinal axis of the head of the wearer claim 14 , and in step b) claim 14 , the plane tied to the head of the wearer is parallel to the sagittal ...

IMAGE DISPLAY APPARATUS, METHOD OF PROCESSING, AND PROCESSING APPARATUS

An image display apparatus includes: a light source part generating a plurality of light rays corresponding to respective pixels in an image that changes over time; a projecting part defining an optical path from the light source part to an eye, and forming the image on a retina of the eye by projecting the generated light rays directly on the retina through the optical path; a splitting part splitting a plurality of reflection light rays from positions in a certain site of the eye on the optical path, the positions corresponding to the respective pixels; a detecting part detecting intensities of the reflection light rays that have been split; and a processing part obtaining parameters indicative of conditions of the site at the positions corresponding to the respective pixels, based on intensities of the generated light rays and the intensities of the reflection light rays, for the respective pixels. 1. An image display apparatus comprising:a light source part that generates a plurality of light rays corresponding to respective pixels in an image that changes over time;a projecting part that defines an optical path from the light source part to an eye, and forms the image on a retina of the eye by projecting the plurality of generated light rays directly on the retina through the optical path;a splitting part that splits a plurality of reflection light rays from positions in a certain site of the eye on the optical path, the positions corresponding to the respective pixels;a detecting part that detects intensities of the plurality of reflection light rays that have been split; anda processing part that obtains parameters indicative of conditions of the site at the positions corresponding to the respective pixels, based on intensities of the generated light rays and the intensities of the plurality of reflection light rays, for the respective pixels.2. The image display apparatus according to claim 1 , whereinthe obtainment of the parameter comprises dividing an ...

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 ...

APPARATUS AND METHODS FOR CALIBRATING OPTICAL MEASUREMENTS

Apparatus and methods are described for calibrating an optical system that is used for measuring optical properties of a portion of a subjects body. During a calibration stage, a front surface of a calibration object () is illuminated, light reflected from a plurality of points on the calibration object () is detected, and intensities of the light reflected from the plurality of points on the calibration object () are measured. During a measurement stage, the portion of the subjects body is illuminated, and light reflected from the portion of the subjects body is detected. Measurements performed upon the light that was reflected from the portion of the subjects body are calibrated, using the measured intensities of the light reflected from the plurality of points on the calibration object (). Other applications are also described. 1. A method for calibration of an optical system used for measuring optical properties of a portion of a body of a subject , the method comprising: illuminating a front surface of a calibration object having known reflectance characteristics with light from a light source of the optical system, the front surface being at least partially curved;', 'detecting light reflected from a plurality of points on the calibration object, using at least one detector of the optical system;', 'measuring intensities of the light reflected from the plurality of points on the calibration object; and', 'determining a calibration value at each location upon the calibration object by calculating an integral over all angles with the known reflectance of the calibration object to determine the absolute reflection coefficient; and, "during a calibration stage, deriving information regarding characteristics of the optical system, with reference to which the measurements that are performed upon the portion of the subject's body may be calibrated, by:"} ["illuminating the portion of the subject's body with light from the light source;", "detecting light reflected ...

OPTOMETRY DEVICE AND METHOD OF PERFORMING A TEST USING SUCH AN OPTOMETRY DEVICE

An optometry device for testing an individual's eye includes: a casing; an imaging module located in the casing and adapted to produce a light beam directed to the individual's eye; and a refraction module adapted to provide a variable optical correction to the individual's eye looking there through into the casing. The optometry device includes an illumination system adapted to produce a variable ambient light level inside the casing. 1. Optometry device for testing an individual's eye comprising:a casing;an imaging module located in the casing and adapted to produce a light beam directed to the individual's eye; anda refraction module adapted to provide a variable optical correction to the individual's eye looking therethrough into the casing; andan illumination system adapted to produce a variable ambient light level inside the casing.2. Optometry device according to claim 1 , wherein the illumination system includes at least one surface and one light source located around the imaging module.3. Optometry device according to claim 1 , wherein the refraction module is displaceably mounted between a first position claim 1 , in which first position the refraction module is crossed by the light beam claim 1 , and a second position claim 1 , in which second position the refraction module is retracted out of the light beam.4. Optometry device according to claim 3 , wherein the imaging module is designed to project the light beam through an eyepiece of the refraction module when the refraction module is in the first position.5. Optometry device according to claim 3 , wherein the refraction module is mounted on a carriage having a gear cooperating with two parallel worms respectively driven by two motors.6. Optometry device according to claim 5 , wherein the refraction module is mounted on the carriage at a position adjustable along a direction perpendicular to an optical axis of the refraction module.7. Optometry device according to claim 1 , wherein the refraction ...

Retinal camera with light baffle and dynamic illuminator for expanding eyebox

A retinal imaging system includes an image sensor for acquiring a retinal image and a dynamic illuminator for illuminating a retina to acquire the retinal image. The dynamic illuminator includes a center baffle along with first and second illumination arrays. The center baffle extends from and surrounds an aperture through which an image path for the retinal image passes before reaching the image sensor. The first illumination array extends out from first opposing sides of the aperture along a first linear axis. The second illumination array extends out from second opposing sides of the aperture along a second linear axis that is substantially orthogonal to the first linear axis.

Optometer for Home Use

An optometer may include a test object including a point light source and a collimator lens configured to collimate light from the point light source. The optometer may generate, for a user viewing the point light source through the collimator lens, an image of the point illumination source on a retina of an eye when the eye is in a rest position without triggering the eye to focus. A user-perceived deviation of the image of the point source from an in-focus image is indicative of visual refractive error of the user. A user may use the device with a naked eye to gauge visual refractive error of the eye or may use the device with corrective lenses to gauge the efficacy of the corrective lenses. 1. An optometer comprising:a test object including a point light source; anda collimator lens configured to collimate light from the point light source such that a user viewing the point light source through the collimator generates an image of the point light source on a retina of an eye when the eye is in a rest position without triggering the eye to focus, wherein a user-perceived deviation of the image of the point light source from an in-focus image is indicative of visual refractive error of the user.2. The optometer of claim 1 , wherein the visual refractive error of the user represents refractive error in the eye of the user when the user views the point light source without a corrective lens.3. The optometer of claim 1 , wherein the visual refractive error of the user represents combined refractive error in the eye of the user and a corrective lens when the user views the point light source with the corrective lens.4. The optometer of claim 1 , wherein user-perceived defocus of the image of the point light source is indicative of focal error.5. The optometer of claim 1 , wherein user-perceived distortion of the image of the point light source into a line is indicative of astigmatism.6. The optometer of claim 1 , wherein at least one of an intensity claim 1 , numerical ...

DYNAMIC EYE CONDITION SELF-DIAGNOSIS

Facilitation of dynamic eye condition self-diagnosis is provided. A system can include a memory and a processor that executes computer executable components. The computer executable components can include: a status component that determines attributes of a user; a visualization component that generates a set of visualizations including at least one of: moving text, moving images or video; a test component that generates a set of tests using a subset of the set of visualizations; an assessment component that assesses an ability of the user to identify the subset of the set of visualizations displayed by the set of tests; and a vision scoring component that scores a vision of the user to generate a vision score, wherein the vision score is based upon an assessment of the ability of the user to identify the displayed subset of the set of visualizations and the attributes of the user. 1. A system , comprising:a memory that stores computer executable components; a status component that determines attributes of a user;', 'a visualization component that generates a set of visualizations including at least one of: moving text, moving images or video;', 'a test component that generates a set of tests using a subset of the set of visualizations;', 'an assessment component that assesses an ability of the user to identify the subset of the set of visualizations displayed by the set of tests; and', 'a vision scoring component that scores a vision of the user to generate a vision score, wherein the vision score is based upon an assessment of the ability of the user to identify the displayed subset of the set of visualizations and the attributes of the user., 'a processor that executes computer executable components stored in the memory;'}2. The system of claim 1 , wherein the vision scoring component adjusts the vision score based on vision requirements associated with an activity or job.3. The system of claim 2 , wherein the vision scoring component adjusts the vision score ...

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 ...

Eye Surgical Lighting Unit

The invention relates to an eye surgical lighting unit for lighting internal ocular tissue. The lighting unit comprises a fiber having a proximal end and a distal end, for guiding a light beam to the distal end. The lighting unit also comprises a manual unit, provided with a cannula and a handle having an internal passage positioned in line with the cannula. The fiber is adjustable between an intraocular operational position in which the fiber extends through the internal passage of the handle and through the cannula, and a chandelier operational position in which the fiber is uncoupled from the manual unit. 1. An eye surgical lighting unit for lighting internal ocular tissue , comprising a fiber having a proximal end and a distal end , for guiding a light beam to the distal end , wherein the lighting unit furthermore comprises a manual unit , provided with a cannula and a handle having an internal passage positioned in line with the cannula , wherein the fiber is adjustable between an intraocular operational position in which the fiber extends through the internal passage of the handle and through the cannula , and a chandelier operational position in which the fiber is uncoupled from the manual unit.2. The eye surgical lighting unit according to claim 1 , wherein the handle is designed claim 1 , through manual operation thereof claim 1 , to bring the distal end of the fiber in at least one of a desired position or orientation.3. The eye surgical lighting unit according to claim 1 , wherein the handle is configured claim 1 , through manual operation thereof claim 1 , to thread the distal end of the fiber through a trocar.4. The eye surgical lighting unit according to claim 1 , wherein the proximal end is provided with a connector for connection to a light source.5. The eye surgical lighting unit according to claim 1 , furthermore comprising a stop which is displaceable along the outer surface of the fiber claim 1 , near the distal end.6. The eye surgical lighting ...

Eye Mounted Device for Controlling Focusing Disorders

An eye mounted display presents defocused images to patients to affect their eyeball development and control focusing disorders such as myopia or hyperopia. For example, images may be projected with peripheral myopic defocus in order to control myopia. Images may be projected with peripheral hyperopic defocus in order to control hyperopia. 1. An eye mounted device for controlling focusing disorders , the eye mounted device comprising:a contact lens to be worn by a patient; anda first group of one or more femtoprojectors mounted in the contact lens, the first group projecting light into the patient's eye, said light being defocused relative to the patient's retina.2. The eye mounted device of where the contact lens is a scleral contact lens.3. The eye mounted device of further comprising:a second group of one or more femtoprojectors mounted in the contact lens, the second group projecting light into the patient's eye, said light focused on the patient's retina.4. The eye mounted device of where the second group projects light to a center foveal region of the patient's retina claim 3 , and the first group projects light to a peripheral region of the patient's retina.5. The eye mounted device of where the first group projects light into the patient's eye with myopic defocus.6. The eye mounted device of where the first group projects light into the patient's eye with hyperopic defocus.7. The eye mounted device of where the first group projects light with enhanced brightness in a blue region of a visible spectrum.8. The eye mounted device of where the first group projects light into the patient's eye with defocus of not more than three diopters.9. The eye mounted device of where both the first and second group project light to a center foveal region of the patient's retina.10. The eye mounted device of where both the first and second group project images into the patient's eye.11. The eye mounted device of where the projected images create an augmented reality or a ...

OPHTHALMIC RANGE FINDING

Systems and methods for analyzing the anatomy of a patient's eye with circular or rotated polarized laser beams, or with laser beams of different wavelengths are disclosed. One system includes a polarization beam-splitter and a quarter-wave plate, wherein the quarter-wave plate is configured to circularly rotate a laser beam received from a laser that is transmitted and passes through the polarization beam-splitter, and to transform a circularly rotated back-reflected beam to a linearly polarized laser beam that is perpendicular to the beam that was transmitted through the polarization beam-splitter. Substantially all of the back-reflected beam is directed to a photo-detector for analysis. A Faraday rotator subsystem may be substituted for a polarization beam-splitter. An optical system including a laser that generates a laser beam of a first wavelength for therapeutic treatment, and another laser that generates a laser beam of a second wavelength for measurement is also disclosed. 1. A system for analyzing a patient's eye comprising:a laser configured for directing a pulsed laser beam along a path;an optical beam-splitting device disposed along the path from the laser, the optical beam-splitting device configured to polarize and rotate the polarity of the laser beam;an objective component including a focusing lens to focus the laser beam within the eye;a sensor oriented along the path, wherein the sensor receives a back-reflected laser beam from the eye, and generates a signal corresponding to that laser beam; anda computing device communicatively coupled with the sensor and configured to receive the signal, wherein the computing device determines a feature of the eye based on the signal.2. The system of claim 1 , wherein the optical beam splitting device comprises:a polarization beam splitter configured to transmit a laser beam oriented in a first linear direction; anda quarter-wave plate configured to rotate in a first circular direction the laser beam ...

CONCENTRATION CALCULATION SYSTEM OF OPTICALLY ACTIVE SUBSTANCE AND NON-TRANSITORY COMPUTER READABLE MEDIUM STORING PROGRAM

A concentration calculation system of an optically active substance, includes: a calculation unit configured to: acquire an amount of change in a polarization state by allowing light having different wavelengths to pass through a cornea and an aqueous humor; and calculate a concentration of a specific optically active substance contained in the aqueous humor by a least squares method based on a theoretical formula which includes a matrix representing a polarization property of the cornea and a matrix representing a polarization property of the aqueous humor and represents a wavelength dependence of the amount of the change, wherein the matrix representing the polarization property of the aqueous humor is represented by a function of an expression representing the wavelength dependence of an optical rotation degree of the specific substance and the expression includes a concentration value of the specific substance as an unknown quantity or a temporal known quantity. 1. A concentration calculation system of an optically active substance , comprising:a calculation unit configured to:acquire an amount of change in a polarization state by allowing light having different wavelengths to pass through a cornea and an aqueous humor; andcalculate a concentration of a specific optically active substance contained in the aqueous humor by a least squares method based on a theoretical formula which includes a matrix representing a polarization property of the cornea and a matrix representing a polarization property of the aqueous humor and represents a wavelength dependence of the amount of change in the polarization state,wherein the matrix representing the polarization property of the aqueous humor is represented by a function of an expression representing the wavelength dependence of an optical rotation degree of the specific optically active substance and the expression includes a concentration value of the specific optically active substance as an unknown quantity or a ...

Information processing apparatus, information processing method, and program

An information processing apparatus according to an embodiment of the present technology includes an acquisition section and a processor. The acquisition section acquires eye information regarding an eye of a user. The processor determines a first line-of-sight direction on the basis of the eye information using a first method, determines a second line-of-sight direction on the basis of the eye information using a second method that is different from the first method, calculates reliability information regarding at least one of reliability of the first line-of-sight direction or reliability of the second line-of-sight direction, and determines a line-of-sight direction of the user on the calculated reliability information.

Scanning Method for Uniform, Normal-Incidence Imaging of Spherical Surface with a Single Beam

Methods and systems for single beam scanning capable of imaging the surface of a spherical body of arbitrary radius of curvature are provided. The spherical imaging methods and systems utilize one or more off-axis parabolic (OAP) mirror to perform a geometrical transformation of the spherical surface to a flat rectilinear imaging coordinate grid such that the single scanning beam maintains a normal incidence across the curved field of view of the spherical body. The imaging methods and systems project the spherical surface to a Cartesian plane and then the remapped surface is rapidly imaged by raster-scanning an illumination beam in the rectangular coordinate such that the OAP mirror produces a rectilinear image of the target. The imaging of the spherical surface is accomplished while maintaining the target, illumination source, and detector in a stationary position. The imaging systems and methods may utilize a single source and a single detector, and may incorporate a THz illumination source. The beam scanning imaging systems and methods may be applied to corneal tissue imaging. 1. An spherical imaging system comprising:an illumination source for producing a single beam of illumination energy, and a detector for detecting a reflected beam of illumination energy, the illumination source and detector defining an optical path along which the illumination energy travels between the illumination source and the detector;a first off-axis parabolic mirror having an optical axis, an effective focal point and a clear aperture, the first off-axis parabolic mirror being disposed in the optical path;a sample having a spherical outer surface and a center of curvature defining a field of view, the sample being disposed in the optical path between the first off-axis parabolic mirror and the detector such that the center of curvature of the sample is disposed at the objective focal point of the first off-axis parabolic mirror, such that the first off-axis parabolic mirror ...

METHODS AND SYSTEMS FOR PULSED ILLUMINATION

Methods and systems for performing an ophthalmic surgical procedure include pulsed illumination of target tissue. The systems may include an illumination instrument arranged to illuminate tissue at a surgical site during the ophthalmic surgical procedure. A light source provides illumination to the illumination instrument for emission from the illumination instrument toward the surgical site. A controller communicates with the light source and activates the light source to provide illumination pulses at a frequency above the flickering perception in humans and with enough light for cameral exposure and human light perception. The light source pulses to minimize phototoxicity. 1. A vitreoretinal surgical system for performing an ocular treatment procedure , comprising:an illumination instrument sized and structurally configured to illuminate tissue at a surgical site during an ocular treatment procedure;a light source arranged to provide illumination to the illumination instrument for emission from the illumination instrument toward the surgical site; anda controller in communication with the light source and configured to activate the light source in a manner providing illumination pulses at a frequency above a flickering perception in humans and at an illumination level sufficient to allow a user to perform the ocular treatment procedure.2. The vitreoretinal surgical system of claim 1 , further comprising a microscope disposed and arranged to provide visualization of illuminated tissue at the surgical site to the user.3. The vitreoretinal surgical system of claim 1 , further comprising:a console including the light source; andan optical fiber extending from the console to the illumination instrument and connecting the light source and the illumination instrument.4. The vitreoretinal surgical system of claim 3 , further comprising a surgical instrument arranged to manipulate tissue at the surgical site claim 3 , the surgical instrument being attached to and powered ...

Method and device for determining a refraction feature of an eye of a subject

Disclosed is a method including the steps of: a) illuminating a pupil of the eye of a subject by a light source; b) acquiring at least one picture of the pupil including an image of the reflection of the light source on the retina of the eye, by means of an image-capture apparatus; and c) and determining a refraction feature of the eye from at least a geometrical feature, a positional feature, or an intensity distribution of the image of the reflection of the light source. Optical distances between the pupil and, respectively, the light source and the image-capture apparatus, are different. An associated device is also described.

FUNDUS IMAGING APPARATUS

A fundus imaging apparatus includes an OCT optical system for acquiring OCT data based on measurement light irradiated on a fundus of a subject eye and reference light, and a front imaging optical system for capturing a front image of the fundus of the subject eye by scanning light on the fundus. The scanning light scanned on the fundus of the subject eye in the front imaging optical system has a wavelength, which is longer than λ=850 nm, in a wavelength region in which a scanning light is unlikely to be visible for the subject eye. 1. A fundus imaging apparatus comprising:an OCT optical system configured to be used for acquiring OCT data based on measurement light irradiated on a fundus of a subject eye and reference light; anda front imaging optical system configured to be used for capturing a front image of the fundus of the subject eye by scanning light on the fundus,wherein the scanning light scanned on the fundus of the subject eye in the front imaging optical system has a wavelength, which is longer than λ=850 nm, in a wavelength region in which a scanning light is unlikely to be visible for the subject eye.2. The fundus imaging apparatus according to claim 1 ,wherein the scanning light scanned on the fundus of the subject eye in the front imaging optical system has a wavelength, which is longer than λ=900 nm, in an invisible region for the subject eye.3. The fundus imaging apparatus according to claim 1 ,wherein a light source used in the OCT optical system is a light source that emits the measurement light having a central wavelength between λ=1000 nm to 1100 nm inclusive.4. The fundus imaging apparatus according to claim 2 , further comprising:an anterior segment observation optical system that guides light, which is illuminated by an anterior segment illumination light source and reflected on an anterior segment of the subject eye, to an imaging element;a first wavelength separation member that performs wavelength separation to divide an optical path of ...

EYE IMAGING DEVICES

An example eye imaging device can include: a camera configured to capture fundus images of an eye of a patient; and a stimuli to configured to stimulate the patient and assess a disease state or a mental state of the patient. Another example eye imaging device can include: a camera configured to capture fundus images of an eye of a patient; and a physical barrier surrounding at least a portion of the eye imaging device to minimize exposure of the eye imaging device. 1. An eye imaging device , comprising:a camera configured to capture fundus images of an eye of a patient; anda stimuli to configured to stimulate the patient and assess a disease state or a mental state of the patient.2. The eye imaging device of claim 1 , wherein the stimuli includes an array of lights.3. The eye imaging device of claim 1 , wherein the stimuli includes a speaker.4. The eye imaging device of claim 1 , further comprising one or more additional cameras configured to track movement of the eye.5. The eye imaging device of claim 1 , further comprising one or more sensors.6. The eye imaging device of claim 1 , wherein the sensors include a temperature sensor.7. The eye imaging device of claim 1 , wherein the sensors include an oximetry sensor.8. An eye imaging device claim 1 , comprising:a camera configured to capture fundus images of an eye of a patient; anda physical barrier surrounding at least a portion of the eye imaging device to minimize exposure of the eye imaging device.9. The eye imaging device of claim 8 , further comprising a detachable face cup.10. The eye imaging device of claim 9 , wherein the face cup includes at least one magnet.11. The eye imaging device of claim 8 , wherein the physical barrier is a cover.12. The eye imaging device of claim 11 , wherein the cover encompasses a housing of the eye imaging device.13. The eye imaging device of claim 11 , wherein the cover encompasses a face cup of the eye imaging device.14. The eye imaging device of claim 8 , wherein the ...

SYSTEM AND METHOD FOR ENABLING COMMUNICATION THROUGH EYE FEEDBACK

System and method for enabling user communication with eye-based feedback. A selection interface selectively presents a series of communication options to the user. A sensor detects light reflected from the eye of the user and provides a correlative signal, which is processed to determine a relative eye orientation that includes the relative orientation of the pupil with respect to the head orientation of the user. The eye may be illuminated by a light source or ambient lighting. The sensor may detect infrared light reflected from the eye illuminated by an infrared light source. The relative eye orientation may be determined by processing images captured by an image sensor. The relative eye orientation may be determined by detecting an instantaneous relative orientation of the pupil or by detecting a transient change of the pupil. Based on the determined relative eye orientation, a selected communication option is determined and implemented. 1. A system for enabling a user to communicate with eye-based feedback , the system comprising:a selection interface, configured to selectively present a series of communication options to the user, the selection interface comprising at least one from the group comprising a visual interface, an audible interface, and a tactile interface;at least one relative eye orientation sensor for sensing at least the relative orientation of the pupil of the eye with respect to the head or the eye socket of the user, configured to detect an eye image or light reflected from the eye and to provide a correlative signal; anda processor, communicatively coupled with said relative eye orientation sensor and with said selection interface, said processor configured to receive and process said correlative signal to determine an eye gesture, and further configured to determine a user selected communication option based on the determined eye gesture, and to provide instructions to implement said user selected communication option.2. The system of ...

ILLUMINATED CANNULA

Apparatuses, systems, and methods for illuminating an interior portion of an eye are disclosed herein. In an exemplary aspect, the present disclosure is directed to an apparatus for use in ophthalmic surgery. The apparatus may include a light guide including an optical fiber, a transition region, and a light sleeve. The transition region may be disposed between the optical fiber and the light sleeve for transmission of light from the optical fiber to the light sleeve such that the light sleeve is operable to emit the light at a distal end of the light sleeve. 1. An illuminated cannula assembly for use in ophthalmic surgery comprising: an optical fiber;', 'a light sleeve; and', 'a transition region,, 'a light guide comprisingthe transition region joining the optical fiber and the light sleeve and adapted to transmit light from the optical fiber to the light sleeve adapted to emit the light from a distal end thereof.2. The illuminated cannula assembly of claim 1 , further comprising a cannula claim 1 , wherein the cannula comprises a tubing claim 1 , and wherein the light sleeve is disposed around the tubing.3. The illuminated cannula assembly of claim 2 , wherein the cannula further comprises a proximal hub disposed at a proximal end of the tubing.4. The apparatus of claim 2 , wherein the transition region branches to form a first branch and a second branch that wrap around the tubing.5. The apparatus of claim 4 , wherein the first branch and the second branch join along a first side of the tubing opposite the optical fiber at an enlarged portion of the transition region claim 4 , wherein the enlarged portion comprises a bulge.6. The illuminated cannula assembly of claim 1 , further comprising a cannula claim 1 , wherein the cannula comprises a tubing claim 1 , and wherein the light sleeve is disposed inside the tubing.7. The illuminated cannula assembly of claim 1 , wherein the transition region comprises:an elongated body portion coupled to a distal end of the ...

FUNCTIONAL OCT DATA PROCESSING

A method of processing functional OCT image data, acquired by an OCT scanner scanning a retina that is being repeatedly stimulated by a light stimulus, to obtain a response of the retina to the light stimulus, comprising: receiving OCT image data generated by the OCT scanner repeatedly scanning the retina over a time period, and a sequence of stimulus indicators each indicative of a stimulation of the retina by the light stimulus in a respective time interval of a sequence of time intervals spanning the time period; calculating, for each stimulus indicator, a product of the stimulus indicator and a respective windowed portion of the sequence of B-scans comprising a B-scan based on a portion of the OCT image data generated while the retina was being stimulated in accordance with the stimulus indicator; and combining the calculated products to generate the indication of the response. 1. A non-transitory computer-readable storage medium storing computer program instructions which , when executed by a computer processor , cause the computer processor to perform a method of processing functional OCT image data , which has been acquired by an OCT imaging device scanning a retina of a subject while the retina is being repeatedly stimulated by a light stimulus , to generate an indication of a response of the retina to the light stimulus , the method comprising: OCT image data that has been generated by the OCT imaging device repeatedly scanning a scanned region of the retina over a time period, and', 'stimulus data defining a sequence of stimulus indicators each being indicative of a stimulation of the retina by the light stimulus in a respective time interval of a sequence of time intervals that spans the time period; and, 'receiving, as the functional OCT image data calculating, for each stimulus indicator, a product of the stimulus indicator and a respective windowed portion of the sequence of B-scans comprising a B-scan which is based on a portion of the OCT image data ...

METHOD AND ASSEMBLY FOR ANALYSING THE WAVEFRONT EFFECT OF AN OPTICAL SYSTEM

A method for analyzing the wavefront effect of an optical system includes: illuminating a measurement mask () with illumination light, producing an interferogram in a specified plane using a diffraction grating () from a wavefront from the illuminated measurement mask and traveling through the optical system; and capturing the interferogram with a detector (). Different angular distributions of the illumination light incident on the measurement mask are produced via a mirror arrangement of independently settable mirror elements. A plurality of interferograms are captured in a plurality of measurement steps, wherein these measurement steps differ respectively in angular distribution of the illumination light that is incident on the measurement mask. A matching wavefront deviation portion in the measurement results obtained respectively in the measurement steps is ascertained to determine the respective system wavefront deviations of the optical system for the pupil regions illuminated respectively in the individual measurement steps. 1. A method for analysing the wavefront effect of an optical system , comprising:illuminating a measurement mask with illumination light from an illumination device;producing an interferogram in a specified plane using a diffraction grating from a wavefront coming from the illuminated measurement mask and traveling through the optical system; andcapturing the interferogram with a detector;wherein different angular distributions of the illumination light that is incident on the measurement mask are produced by a mirror arrangement of independently settable mirror elements;wherein a plurality of interferograms are captured in a plurality of measurement steps, wherein the measurement steps differ from one another in respective angular distribution of the illumination light that is incident on the measurement mask; andwherein a matching wavefront deviation portion in measurement results obtained respectively in the measurement steps is ...

Digital 3D infrared slit lamp with pupil and retina intensity measurement

The invention relates to a device and method of ophthalmic diagnosis of lesions on retina utilizing a slit lamp apparatus with a pupil reader and at least one visible LED and one Infrared LED to detect a lesion on the retina of an eye. 1. A slit-lamp apparatus consisting of a light source module , optics module , digital monitors , a digital link , a computer and a program on said computer in communication with said light source module having a first caliper module for determining the dimension of a patient's pupil , a second caliper module for determining the dimension of a light spot on a patients retina , an illumination intensity module for determining the intensity of the illuminated spot on said patient's retina , said first caliper module measuring said patient's pupil , said second caliper module measuring the light spot on a patients retina and the illumination intensity module measuring the intensity of the illuminated spot on said patient's retina and said intensity modulation module , said digital monitors and said computer and said program on said computer adjusting the intensity light source module based on the intensity of the illuminated spot on said patient's retina , pupil size and illuminated spot size on said patients retina and said digital monitors captures the images of a patient's ocular tissue and said digital monitor using said images of a patient's ocular tissue creates a 3-dimensional digital image.2. The slit-lamp apparatus of claim 1 , wherein said light source module comprises of: a) a visible light LED and condenser lens claim 1 , b) an infrared LED and condenser lens claim 1 , c) a beam splitter claim 1 , d) a focusing lens claim 1 , e) a slit mask claim 1 , f) a color filter claim 1 , g) a projection lens claim 1 , h) a mirror to turn the light 90 degrees.3. The slit-lamp apparatus of claim 1 , wherein the physician using said first caliper module measures the diameter of said patient's pupil and said second caliper module measures ...

OPTICAL FIBER APPARATUS WITH HIGH DIVERGENCE ANGLE AND LIGHT SOURCE SYSTEM USING SAME

A high-divergence-angle optical fiber apparatus is disclosed that includes a multimode optical fiber having a distal end and a divergence angle θ′. A light-redirecting structure is operably disposed at the distal end and consists of an array of between 1 and 10 layers of fused glass microspheres. The light-redirecting structure defines a divergence angle θ, wherein θ≥2θ′. A light source system that utilizes the high-divergence-angle optical fiber apparatus is also disclosed. 1. An high-divergence-angle (HDA) optical fiber apparatus , consisting of:a multimode optical fiber having a glass core, a lower-index glass cladding surrounding the glass core, a proximal end and a distal end, wherein the optical fiber has a divergence angle θ′;a light-redirecting structure operably disposed at the distal end and consisting of an array of fused glass microspheres having diameters in the range from 3 microns to 25 microns wherein the array is fused to the distal end and has between 1 layer and 10 layers of microspheres; andwherein the light-redirecting structure defines a divergence angle θ, wherein θ≥2θ′.212. The HDA optical fiber apparatus according to claim 1 , wherein the optical fiber has a core diameter D of nominally 40 microns and a cladding outer diameter D of nominally 50 microns.3. The HDA optical fiber apparatus according to claim 1 , wherein the glass microspheres claim 1 , the glass core and the glass cladding are each made of a silica-based glass.4. The HDA optical fiber apparatus according to claim 1 , wherein the array has between 1 layer and 6 layers of the microspheres.5. The HDA optical fiber apparatus according to claim 1 , wherein the microspheres are solid.6. The HDA optical fiber apparatus according to claim 1 , wherein θ≥3θ′.7111. The HDA optical fiber apparatus according to claim 1 , wherein the core has a diameter D and includes adjacent the distal end a widened core section that has a diameter D′ that is at least 5% greater than the core diameter D.8. ...

Ophthalmologic apparatus, ophthalmologic control method, and recording medium

There are provided an ophthalmologic apparatus, an ophthalmologic control method, and a recording medium capable of irradiating a subject's eye with an appropriate light amount. The ophthalmologic apparatus includes a measurement unit configured to measure a light amount emitted from a light source, and a control unit configured to control a light amount emitted from the light source based on relation information representing a relationship between a light amount emitted from the light source and a light amount irradiated on a test eye, and the light amount measured by the measurement unit.

EYE IMAGING APPARATUS WITH SEQUENTIAL ILLUMINATION

An eye imaging apparatus can include a housing, an optical imaging system in the housing, and a light source in the housing to illuminate an eye. The optical imaging system can include an optical window at a front end of the housing with a concave front surface for receiving the eye as well as an imaging lens disposed rearward the optical window. The apparatus can comprise a light conditioning element configured to receive light from the light source and direct said light to the eye. The apparatus can further include an image sensor in the housing disposed to receive an image of the eye from the optical imaging system. In various embodiments, light conditioning element includes at least one multi-segment surface. In some embodiments, the housing is provided with at least one hermitic seal, for example, with the optical window. In some embodiments, time sequential illumination is employed. 1. An eye imaging apparatus comprising:a housing;a light source disposed inside the housing, the light source comprising a plurality of light emitting elements, the plurality of light emitting elements configured to illuminate different portions of an eye time-sequentially; an optical window with a concave front surface at a front end of the housing;', 'an imaging lens positioned behind the optical window and optically aligned with the optical window along the optical axis;, 'an optical imaging system inside the housing, the optical imaging system having an optical axis, the optical imaging system comprisingan image sensor configured to receive a plurality of images of the eye with a same field of view through the optical imaging system while each portion of the eye is illuminated time-sequentially.2. The eye imaging apparatus in claim 1 , further comprises a memory configured to temporarily store the image claim 1 , a computing and communication unit configured to receive and transmit the image.3. The eye imaging apparatus in claim 1 , further comprising a light conditioning ...

APPLANATION TONOMETER HAVING CORNEA ALIGNMENT MEANS

An applanation tonometer for providing a measurement of intraocular fluid pressure inside the eye of a patient. The applanation tonometer includes a light-transmitting prism having a cornea contact tip at one end and a cornea alignment aid at the opposite end. The cornea alignment aid enables the patient to advise a vision professional when a light source of the tonometer is properly aligned with his cornea so that intraocular fluid pressure can be accurately measured. A light-blocking baffle is located at the opposite end of the prism, and a thin light-transmitting channel is formed through the baffle to lie on the longitudinal axis of the prism. In a preferred embodiment, the light baffle is at least one opaque disk, and the light-transmitting channel is a clear spot at the center of the opaque disk through which light is transmitted to the patient's cornea. 1. An applanation tonometer to measure the intraocular pressure of an eye of a patient , said tonometer comprising:a light source to generate light;a light-transmitting body having first and opposite ends and a contact tip located at the first end to be moved into contact with the eye undergoing testing and apply a pressure thereagainst, said contact tip being positioned to receive the light generated by said light source in a first direction inwardly through said light-transmitting body towards the eye and to reflect at least some of the inwardly-transmitted light in a second direction outwardly through said light-transmitting body away from the eye depending upon the area of contact between the contact tip of said light-transmitting body and the eye;means to which the patient is responsive to indicate the alignment of said light source with the cornea of the patient's eye undergoing testing;a photo detector to receive the light reflected by said contact tip in the second direction outwardly through said light-transmitting body and to provide an output signal in response thereto; anda force detector to ...

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 ...

INTEGRATED DEVICE FOR OPHTHALMOLOGY

A device () for ophthalmic radiation is provided. The device comprises a radiation interface (), an optical branch coupler (), and a plurality of ophthalmic units (). The radiation interface is adapted to at least one of output and capture radiation on an optical path (). The optical path is directable towards a patient's eye. The optical branch coupler is adapted to couple output radiation from a plurality of optical branches () into the optical path and to couple captured radiation from the optical path into the optical branches. The captured radiation is spectrally split by the optical branch coupler into the optical branches. Each of the optical branches has a different spectral range. Each of the plurality of ophthalmic units is arranged to couple to one of the optical branches. 1. An ophthalmic system , comprising:an Optical Coherence Tomography (OCT) system adapted to perform an OCT measurement of an eye and output an OCT signal;a wavefront aberrometer adapted to measure a wavefront of the eye and output a wavefront signal;a digital camera adapted to capture a digital image of the eye and output a digital image signal; and receive the OCT signal, the wavefront signal, and the digital image signal;', 'generate a three-dimensional image of an anterior segment of the eye based on the received OCT signal;', 'compute optimized values for a sphere component, a cylinder component, and an axial component of a refractive power of the eye based on at least two of the received OCT signal, the received wavefront signal, and the received digital image signal; and', 'output the three-dimensional image of the eye, together with the optimized values for the sphere component, the cylinder component, and the axial component of the refractive power of the eye., 'a controller electrically coupled to the OCT system, wavefront aberrometer, and digital camera, the controller comprising a central processing unit (CPU) and a graphics engine adapted to2. The ophthalmic system of claim ...

Graphical user interface for laser eye surgery system

Methods and systems for planning and forming incisions in a cornea, lens capsule, and/or crystalline lens nucleus are disclosed. A method includes measuring spatial dispositions, relative to a laser surgery system, of at least portions of the corneal anterior and posterior surfaces. A spatial disposition of an incision of the cornea is generated based at least in part on the measured corneal anterior and posterior spatial dispositions and at least one corneal incision parameter. A composite image is displayed that includes an image representative of the measured corneal anterior and posterior surfaces and an image representing the corneal incision.

GRAPHICAL USER INTERFACE FOR LASER EYE SURGERY SYSTEM

Methods and systems for planning and forming incisions in a cornea, lens capsule, and/or crystalline lens nucleus are disclosed. A method includes measuring spatial dispositions, relative to a laser surgery system, of at least portions of the corneal anterior and posterior surfaces. A spatial disposition of an incision of the cornea is generated based at least in part on the measured corneal anterior and posterior spatial dispositions and at least one corneal incision parameter. A composite image is displayed that includes an image representative of the measured corneal anterior and posterior surfaces and an image representing the corneal incision. 1. A method of planning a laser surgery procedure on an eye having a cornea , a pupil , and a lens , the cornea having an anterior surface and a posterior surface , the lens being disposed within a lens capsule having an anterior portion and a posterior portion , the method comprising:coupling the eye to a laser surgery system operable to measure a spatial disposition of an internal structure of the eye relative to the laser surgery system;measuring a spatial disposition of at least a portion of the corneal anterior surface by using the laser surgery system;measuring a spatial disposition of at least a portion of the corneal posterior surface by using the laser surgery system;generating a spatial disposition of an incision of the cornea based at least in part on the measured corneal anterior and posterior spatial dispositions and at least one corneal incision parameter; anddisplaying a composite image that includes an image representative of the measured corneal anterior and posterior surfaces and an image representing the corneal incision.2. The method of claim 1 , wherein the at least one corneal incision parameter includes a corneal incision line density parameter to control amount of overlap between adjacent lines of laser pulse focus points that will be used to form the corneal incision.3. The method of claim 1 , ...

MEASURING SENSITIVITY TO POLARIZED LIGHT

Embodiments test a subject's vision. A polarization arrangement polarizes incident light and rotates an angle of polarization applied to the incident light about an axis substantially collinear with a path of the light. An optical component directs light onto the polarization arrangement and produces light having a selected degree of polarization and having a rotating angle of polarization for observation by the subject The subject may be able to observe the visual phenomenon known as Haidinger's brushes and due to the rotation of the angle of polarization the eye's tendency to adapt away the phenomenon is counteracted, so that the effect persists and a more reliable testing of the subject can be carried out. Testing the subject's ability to perceive the phenomenon at multiple selectable degrees of polarization enables an assessment of the subject's eyes, and an estimate of macular pigment optical density and susceptibility to age-related macular degeneration. 1. Apparatus for testing a subject's vision comprising:a polarization arrangement configured to polarize incident light and rotate an angle of polarization applied to the incident light about an axis substantially collinear with a path of the incident light; andan optical component configured to direct light onto the polarization arrangement,wherein the polarization arrangement is configured to produce light having a selected degree of polarization from multiple selectable degrees of polarization and having a rotating angle of polarization while under observation by the subject.2. The apparatus as claimed in claim 1 , wherein the polarization arrangement comprises a rotation direction selection mechanism to select a direction of rotation of the angle of polarization.3. The apparatus as claimed in claim 2 , wherein the rotation direction selection mechanism comprises a user input to select the direction of rotation.4. The apparatus as claimed in claim 2 , wherein the rotation direction selection mechanism is ...

REAL-TIME REMOVAL OF IR LED REFLECTIONS FROM AN IMAGE

A system for the real-time removal of reflections from an image including a head wearable device, a first illuminator, a second illuminator, at least one camera and a reflection removal processor. The first and the second illuminators are configured to provide light and to operate one at a time alternately. The at least one camera is configured to capture a first image of the eye of the user when the first illuminator is in an ON state and a second image when the second illuminator is in an ON state. The operation of the at least one camera is synchronized with the operation of the first illuminator and the second illuminator. The camera captures images and transfers them to the reflection removal processor that provides real-time removal of reflections by combining the first image and the second image. 1. An eye imaging system free from reflected light , comprising:a. an eye wearable device adaptable to removably attach to the eye of a user;b. a first illuminator attached to an inner side of the eye wearable device and adaptable to provide light towards the eye of the user;c. a second illuminator positioned at a distance from the first illuminator and attached to the inner side of the eye wearable device, the second illuminator configured to operate in an ON state when the first illuminator is OFF and to operate in an OFF state when the first illuminator is ON;d. at least one camera attached to the inner side of the eye wearable device, the at least one camera configured to capture a first image of the eye of the user when the first illuminator is in the ON state and the second illuminator is in the OFF state and a second image when the first illuminator is in the OFF state and the second illuminator is in the ON state; ande. a reflection removal processor in communication with the camera, the reflection removal processor adaptable to receive images captured by the at least one camera and configured to combine images that are alternatively illuminated by the first ...

SPECTACLE DEVICE WITH AN ADJUSTABLE FIELD OF VIEW AND METHOD

The invention relates to a spectacle device () for capturing at least one parameter of at least one eye () of a test person () wearing the spectacle device (), the spectacle device () comprising a frame () configured to fix the spectacle device () to the head of the test person (), at least one first capturing unit () configured to optically capture the at least one parameter of the at least one eye (), and a second capturing unit () the optical capture range of which at least partly corresponds to an optical capture range of the at least one eye () and which is configured to output data concerning a field of view (FOV FOV) which is correlated with the optical capture range of the second capturing unit (), wherein the field of view (FOV FOV) is adjustable. 115.-. (canceled)16. A spectacle device for capturing at least one parameter of at least one eye of a test person wearing the spectacle device , the spectacle device comprising a frame configured to fix the spectacle device to the head of the test person , at least one first capturing unit configured to optically capture the at least one parameter of the at least one eye , and a second capturing unit having an optical capture range which at least partly corresponds to an optical capture range of the at least one eye , characterized in thatthe second capturing unit is configured to output data concerning a field of view of the second capturing unit whereby the field of view is correlated with the optical capture range of the second capturing unit for a specific orientation of the spectacle device in space, and whereby, further on, the field of view of the second capturing unit is adjustable.17. The spectacle device according to claim 16 ,characterized in thatthe field of view is automatically adjustable in dependency on the at least one captured parameter of the at least one eye.18. The spectacle device according to claim 16 ,characterized in thatthe field of view is manually adjustable, in particular by the test ...

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 ...

Refractive property measurement device, measurement tool, and refractive property measurement method

A refractive property measurement apparatus to measure refractive properties of an eye includes: a disk provided with a first pinhole and a second pinhole that transmit light rays while narrowing them; a light emitting unit that emits a first light ray and a second light ray from different positions on a surface of the disk, so that light rays passed through the first pinhole and the second pinhole enter the eye; and a processing unit determines refractive properties of the eye from information of positions on a retina of the eye where the first light ray having passed through the first pinhole and the second light ray having passed through the second pinhole reach. The first pinhole includes a first optical element that transmits the first light ray, and the second pinhole includes a second optical element that has transmission characteristics of transmitting the second light ray.

Systems and Methods For Retarding Myopia Progression

Myopia is a clinically significant and growing problem around the world. A major cause is the increasing time spent indoors by children, for example, playing video games, studying, and watching television. Exposure to outdoor light is known to be protective, and prevents the onset and also delays the progression of myopia. Embodiments of the present invention provide simulated continuous outdoor light in either a closed or open feedback loop sufficient to retard myopia progression. 1. A myopia progression retarding system comprising:a light source configured to provide illumination for simulating an outdoor lighting environment for a user;a sensor configured to measure a pupillary response of the user thereby determining a pupillary constriction, anda processor operatively coupled to the light source and the sensor, wherein the processor is configured to dynamically adjust the illumination provided by the light source to solicit a target pupillary response from the user consistent with exposure to the outdoor lighting environment.2. The system of wherein an intensity of the illumination is approximately 10 claim 1 ,000 Lux.3. The system of wherein a spectrum of the illumination is equivalent to natural sunlight.4. The system of wherein the system is integrated into an eyewear.5. The system of wherein the system is integrated into a headgear.6. The system of wherein the system is integrated into a computerized device.7. The system of wherein the computerized device is one of a smart phone claim 6 , a tablet and a laptop.8. The system of wherein the system is integrated into a Virtual Reality (“VR”) device.9. The system of wherein the system is integrated into an Augmented Reality (“AR”) device.10. A method for retarding myopia progression claim 1 , the method comprising:providing illumination to simulate an outdoor lighting environment for a user;measuring a pupillary response of the user to determine a pupillary constriction; anddynamically adjusting the provided ...