Pre-stressed haptic for accommodating intraocular lens
Номер патента: EP2101686A2
Опубликовано: 23-09-2009
Автор(ы): Daniel G. Brady, Edward P. Geraghty, Randall L. Woods, Timothy R. Bumbalough
Принадлежит: Abbott Medical Optics Inc
Опубликовано: 23-09-2009
Автор(ы): Daniel G. Brady, Edward P. Geraghty, Randall L. Woods, Timothy R. Bumbalough
Принадлежит: Abbott Medical Optics Inc
Реферат: An intraocular lens is disclosed, with an optic (21,28,43,63,82,111,130,200,230) that changes shape in response to a deforming force exerted by the zonules of the eye. A haptic (23,30,42,62,81,112,120,190,220) supports the optic around its equator and couples the optic to the capsular bag of the eye. The haptic may be pre-stressed before the optic is placed within it. After such placement, the pre-stress may be relieved, and the haptic may produce stress in the optic. The pre-stress may produce a radial tension or a radial compression in the optic. Alternatively, once the optic is placed within the haptic, both may undergo a process that changes the size and/or shape of one with respect to the other, causing a stress within the optic. This process may produce a radial tension or a radial compression in the optic. The haptic may include an annular ring having outer and inner diameters that may depend on the stiffness of the haptic.
Pre-stressed haptic for accommodating intraocular lens
Номер патента: CA2673823A1. Автор: Daniel G. Brady,Timothy R. Bumbalough,Randall L. Woods,Edward P. Geraghty. Владелец: Individual. Дата публикации: 2008-07-10.