Intraocular lens and method of compensating for changes in capsule size and changes in the eye after implantation

Abstract

Accommodating intraocular lenses and methods of use which account for changes to a capsular bag post-implantation as well as a mismatch is size between the accommodating intraocular lens and capsule are provided.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application No. 61 / 143559, filed January 9, 2009, which is hereby incorporated by reference. Background technique [0003] refer to figure 1 and 2, first describing the structure and operation of the human eye as a background to the invention. Eye 10 includes cornea 11 , iris 12 , ciliary muscle 13 , ligamentous fibers or zonules 14 , capsule 15 , lens 16 and retina 17 . The natural lens 16 comprises viscous, gel-like transparent fibers arranged in an "onion-like" layered structure and arranged within a transparent elastic capsule 15 . The capsule 15 is attached by a zonule 14 around its perimeter to the ciliary muscle 13 , which in turn is attached to the inner surface of the eye 10 . The vitreous body 18 is a highly viscous clear fluid that fills the center of the eye 10 . [0004] Separated from the eye, the relaxed capsule and lens have a convex shape. Howeve...

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Problems solved by technology

[0016] A possible drawback of some post-implantation adjustments is that they require a secondary intervention (ie, an additional step or procedure after the IOL is positioned in the capsular bag)

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