Contact lenses for refractive correction

Abstract

Ophthalmic lenses for correcting refractive error of an eye are disclosed. Ophthalmic lenses include a deformable inner portion and a deformable peripheral portion. When disposed over the optical region of an eye, the inner portion is configured so that engagement of the posterior surface against the eye deforms the posterior surface so that the posterior surface has a shape diverging form the refractive shape of the epithelium when viewing with the eye through the ophthalmic lens. The rigidity of the inner portion is greater than the rigidity of the peripheral portion and the ophthalmic lenses are configured to allow movement relative to the eye upon blinking of the eye and to be substantially centered on the optical region of the cornea following the blinking of the eye. Methods of correcting refractive errors of an eye such as astigmatism or spherical aberration using the ophthalmic lenses are also disclosed.

1 - 38 . (canceled) 
     
     
         39 . An ophthalmic lens for correcting presbyopia of an eye, wherein the eye comprises a cornea, and wherein the ophthalmic lens comprises:
 an inner portion configured to be disposed over an optical region of the cornea; and   a peripheral portion disposed radially outward of the inner portion;   wherein,
 the inner portion is configured to provide a lenticular volume between the posterior surface of the ophthalmic lens and the optical region of the cornea; and 
 the inner portion comprises a presbyopia-mitigating shape. 
   
     
     
         40 . The ophthalmic lens of  claim 39 , wherein,
 the inner portion is characterized by an inner rigidity;   the inner portion comprises a material characterized by a modulus; and   the inner rigidity and the inner modulus are configured to provide a lenticular volume between the posterior surface of the ophthalmic lens and the optical region of the cornea.   
     
     
         41 . The ophthalmic lens of  claim 39 , wherein the inner portion is deformable when the eye blinks. 
     
     
         42 . The ophthalmic lens of  claim 39 , wherein the presbyopia-mitigating shape comprises an add region, a multifocal shape, an aspherical shape, or a combination of any of the foregoing. 
     
     
         43 . The ophthalmic lens of  claim 39 , wherein the peripheral portion comprises one or more radius of curvature. 
     
     
         44 . The ophthalmic lens of  claim 39 , wherein the peripheral portion is configured to engage a tissue of the eye so as to prevent or minimize motion of the inner portion with respect to the optical region of the cornea. 
     
     
         45 . The ophthalmic lens of  claim 44 , wherein the tissue of the eye comprises epithelium. 
     
     
         46 . The ophthalmic lens of  claim 39 , wherein the ophthalmic lens comprises a plurality of fenestrations fluidly coupled to the lenticular volume. 
     
     
         47 . The ophthalmic lens of  claim 39 , wherein,
 the cornea comprises a central optical axis; and   the ophthalmic lens is configured to correct presbyopia independent of the orientation of the ophthalmic lens about the central optical axis.   
     
     
         48 . The ophthalmic lens of  claim 39 , wherein the inner rigidity is greater than a rigidity of the peripheral portion. 
     
     
         49 . The ophthalmic lens of  claim 39 , wherein the inner portion comprises a material characterized by an inner modulus, wherein the inner modulus is greater than a modulus of the peripheral portion. 
     
     
         50 . The ophthalmic lens of  claim 39 , wherein the ophthalmic lens is configured to correct presbyopia independent of a rotational orientation of the ophthalmic lens about a viewing axis of the eye. 
     
     
         51 . The ophthalmic lens of  claim 39 , wherein the inner portion, the peripheral portion, or both the inner portion and the peripheral portion are radially symmetric. 
     
     
         52 . The ophthalmic lens of  claim 39 , wherein the inner portion and the peripheral portion are configured to allow movement of the ophthalmic lens relative to the eye in response to blinking of the eye. 
     
     
         53 . The ophthalmic lens of  claim 39 , wherein the inner portion, the peripheral portion, or both the inner portion and the peripheral portion move toward the cornea when the eye blinks. 
     
     
         54 . A method of treating presbyopia comprising applying to an eye of a patient in need of such treatment the ophthalmic lens of  claim 39 . 
     
     
         55 . The method of  claim 54 , wherein,
 the cornea comprises a central optical axis; and   applying the ophthalmic lens comprises applying the ophthalmic lens independent of an orientation of the ophthalmic lens with respect to the optical axis of the cornea.   
     
     
         56 . The method of  claim 54 , wherein the ophthalmic lens is configured to correct presbyopia independent of a rotational orientation of the ophthalmic lens about a viewing axis of the eye.