Intraocular lens implant having posterior bendable optic

摘要

An intraocular lens (30) having focusing capabilities permitting focusing movement of the lens (30) in response to normal ciliary body (24) movement incident to changes in the distance between the eye and an object under observation is provided. The lens (30) is designed for surgical implantation within the capsule (20) of an eye (10) and includes an optic (32) and an optic positioning element (33) which cooperate to form the lens (30). Accommodation is achieved by relying upon the thickening and thinning of the optic (32) as a result of the normal retracting and contracting of the ciliary body (24) in response to the distance of an object from the viewer.

主权项

1. An accommodating intraocular lens for implantation within an eye, comprising:
a combination optic coupled to an optic positioning element, the combination optic comprising:
a first optic comprising an anterior wall and a posterior wall;a second optic positioned anterior of the first optic and comprising a convex anterior surface and a convex posterior surface; anda first chamber that is sealed and is gas-filled, the first chamber being positioned between the anterior wall of the first optic and the convex posterior surface of the second optic,wherein the optic positioning element comprises an optic positioning wall and a bight, wherein the optic positioning wall extends from the combination optic, curves away from the combination optic to form the bight, and then continues curving until the optic positioning wall terminates at a location opposing the combination optic, wherein the optic positioning wall along with the combination optic form a second chamber with an opening allowing fluids to enter and fill the second chamber, and wherein the combination optic and the optic positioning element are configured to conform to the shape of a capsular bag.