Intraocular lenses and peripheral portion stabilization

Abstract

An intraocular lens, wherein an outer periphery of an optic portion has a peripheral surface, and a radially inner portion of a peripheral portion of the IOL has an inner surface, wherein the peripheral surface is directly adjacent to the inner surface, and wherein the peripheral surface does not directly extend (coupled to or integrally formed therewith) from the inner surface, and wherein the peripheral surface and the inner surface are configured so that the peripheral portion is stabilized in at least one of, and optionally both of, the proximal and distal directions relative to the optic portion.

We claim: 
     
         1 . An intraocular lens, comprising:
 an optic portion; and   a peripheral portion,   wherein an outer periphery of the optic portion has a peripheral surface, wherein the peripheral surface has a depression, and wherein a radially inner portion of the peripheral portion of the intraocular lens has an inner surface,   wherein the peripheral surface is directly adjacent to the inner surface and does not directly extend from the inner surface, and   wherein at least a portion of the inner surface is disposed in the depression when the intraocular lens is in an at-rest configuration.   
     
     
         2 . The intraocular lens of  claim 1 , wherein the depression is defined such that a portion of the peripheral surface is set radially inward relative to another portion of the peripheral surface along an anterior-to-posterior direction. 
     
     
         3 . The intraocular lens of  claim 1 , wherein the intraocular lens is a fluid-filled intraocular lens, wherein the optic portion comprises an optic fluid chamber, and wherein the peripheral portion comprises at least one peripheral fluid chamber in fluid communication with the optic fluid chamber. 
     
     
         4 . The intraocular lens of  claim 1 , wherein the inner surface that is disposed in the depression is disposed axially between an anterior-most location of the optic portion and a posterior-most location of the optic portion. 
     
     
         5 . The intraocular lens of  claim 1 , wherein the inner surface is spaced away from and around the outer periphery of the optic portion from a location where the peripheral portion extends from the optic portion. 
     
     
         6 . The intraocular lens of  claim 1 , wherein the inner surface is disposed between a location where the peripheral portion extends from the optic portion and a free and closed distal end of the peripheral portion. 
     
     
         7 . The intraocular lens of  claim 1 , wherein a midpoint of the peripheral portion, measured in an anterior-to-posterior direction, is part of the inner surface that is disposed in the depression of the optic portion. 
     
     
         8 . The intraocular lens of  claim 1 , wherein the inner surface that is disposed in the depression has a height in an anterior-to-posterior direction that is less than a greatest height dimension of the peripheral portion. 
     
     
         9 . The intraocular lens of  claim 1 , wherein the depression is symmetrical about an axis orthogonal to an optical axis of the optic portion. 
     
     
         10 . An intraocular lens, comprising:
 an optic portion; and   a peripheral portion,   wherein an outer periphery of the optic portion has a peripheral surface, wherein the peripheral surface comprises a plurality of depressions spaced apart around the outer periphery of the optic portion, and wherein a radially inner portion of the peripheral portion of the intraocular lens has an inner surface,   wherein the peripheral surface is directly adjacent to the inner surface and does not directly extend from the inner surface, and   wherein at least a portion of the inner surface is disposed in at least one of the depressions.   
     
     
         11 . The intraocular lens of  claim 10 , wherein at least one of the depressions is defined such that a portion of the peripheral surface is set radially inward relative to another portion of the peripheral surface along an anterior-to-posterior direction. 
     
     
         12 . The intraocular lens of  claim 10 , wherein the intraocular lens is a fluid-filled intraocular lens, wherein the optic portion comprises an optic fluid chamber, and wherein the peripheral portion comprises at least one peripheral fluid chamber in fluid communication with the optic fluid chamber. 
     
     
         13 . The intraocular lens of  claim 10 , wherein the inner surface that is disposed in the at least one of the depressions is disposed axially between an anterior-most location of the optic portion and a posterior-most location of the optic portion. 
     
     
         14 . The intraocular lens of  claim 10 , wherein the inner surface is spaced away from and around the outer periphery of the optic portion from a location where the peripheral portion extends from the optic portion. 
     
     
         15 . The intraocular lens of  claim 10 , wherein the inner surface is disposed between a location where the peripheral portion extends from the optic portion and a free and closed distal end of the peripheral portion. 
     
     
         16 . The intraocular lens of  claim 10 , wherein a midpoint of the peripheral portion, measured in an anterior-to-posterior direction, is part of the inner surface that is disposed in the at least one of the depressions of the optic portion. 
     
     
         17 . The intraocular lens of  claim 10 , wherein the inner surface that is disposed in the at least one of the depressions has a height in an anterior-to-posterior direction that is less than a greatest height dimension of the peripheral portion. 
     
     
         18 . An intraocular lens, comprising:
 an optic portion; and   a peripheral portion,   wherein an outer periphery of the optic portion has a peripheral surface, wherein the peripheral surface has a depression that is not symmetrical about an axis orthogonal to an optical axis of the optic portion, and wherein a radially inner portion of the peripheral portion of the intraocular lens has an inner surface,   wherein the peripheral surface is directly adjacent to the inner surface and does not directly extend from the inner surface, and   wherein at least a portion of the inner surface is disposed in the depression.   
     
     
         19 . The intraocular lens of  claim 18 , wherein the depression is defined such that a portion of the peripheral surface is set radially inward relative to another portion of the peripheral surface along an anterior-to-posterior direction. 
     
     
         20 . The intraocular lens of  claim 18 , wherein the intraocular lens is a fluid-filled intraocular lens, wherein the optic portion comprises an optic fluid chamber, and wherein the peripheral portion comprises at least one peripheral fluid chamber in fluid communication with the optic fluid chamber.