Deformable intraocular lens structures and methods and...

Details Deformable intraocular lens structures and methods and... Deformable intraocular lens structures and methods and...

A - Human Necessities

61

F

3/112

A61F 2/16 (2006.01)

Patent

CA 1275351

DEFORMABLE INTRAOCULAR LENS STRUCTURES AND METHODS AND DEVICES FOR IMPLANTATION ABSTRACT An intraocular lens which is used as an arti- ficial lens implant in an eye has a deformable optical zone with known memory characteristics. These enable the lens to be deformed. Such as by compressing or rolling, to 80% or less of the cross sectional diameter of the optical zone in an unstressed state, but allow the lens to return to its original ocnfiguration and fixed focal length after implantation. A surgical device is disclosed for deforming the lens, which device has a shaft having at one end a member engageable with a distal portion of the lens and another member engageable with a proximal portion of the lens. The two members are movable one relative to the other to effect deformation of the optical zone of the lens during insertion of the lens into the eye.

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