Soft contact lens with new stabilization zones for improved angular stability and comfort

Abstract

Ophthalmic lenses are described herein. An example ophthalmic lens may comprise a first surface. The example ophthalmic lens may comprise a second surface disposed opposite the first surface. The second surface may be configured to abut at least a portion of an eye of a wearer. The example ophthalmic lens may comprise a lens stabilization zone disposed adjacent the first surface. At least a contour of the lens stabilization zone may be configured to minimize a recovery time for the ophthalmic lens to orient to a resting position from a misaligned position.

1 - 45 . (canceled) 
     
     
         46 . An ophthalmic lens comprising:
 a first surface;   a second surface disposed opposite the first surface, wherein the second surface is configured to abut at least a portion of an eye of a wearer; and   an active region disposed adjacent the first surface, wherein the active region is positioned based on an expected interaction with the at least one eyelid of the wearer, and wherein the position is determined based on one or more eyelid profiles, wherein at least a contour of the active region is configured based on a distribution of terrain slope of a target one or more eyes.   
     
     
         47 . The ophthalmic lens of  claim 46 , wherein the contour comprises a cumulative terrain slope. 
     
     
         48 . The ophthalmic lens of  claim 46 , wherein the contour is configured for interactions with only upper eyelids or only lower eyelids. 
     
     
         49 . The ophthalmic lens of  claim 46 , wherein the ophthalmic lens has a generally round shape. 
     
     
         50 . The ophthalmic lens of  claim 46 , wherein the ophthalmic lens has a non-round shape. 
     
     
         51 . The ophthalmic lens of  claim 46 , further comprising a second active region disposed adjacent the first surface. 
     
     
         52 . The ophthalmic lens of  claim 51 , wherein at least a contour of the second active region is configured based on a distribution of terrain slope of a target one or more eyes. 
     
     
         53 . The ophthalmic lens of  claim 51 , wherein the active regions are symmetrical with respect to the sagittal plane. 
     
     
         54 . The ophthalmic lens of  claim 51 , wherein the active regions are symmetrical with respect to the tangential plane. 
     
     
         55 . The ophthalmic lens of  claim 51 , wherein the active regions are symmetrical with respect to the sagittal plane and the tangential plane. 
     
     
         56 . The ophthalmic lens of  claim 51 , wherein the active regions are not symmetrical with respect to the sagittal plane. 
     
     
         57 . The ophthalmic lens of  claim 51 , wherein the active regions are not symmetrical with respect to the tangential plane. 
     
     
         58 . The ophthalmic lens of  claim 51 , wherein the active regions are not symmetrical with respect to the sagittal plane and the tangential plane. 
     
     
         59 . The ophthalmic lens of  claim 46 , wherein the expected terrain slope is determined based on an individual eye shape of a target wearer. 
     
     
         60 . The ophthalmic lens of  claim 46 , wherein the terrain slope is determined based on a plurality of sample eyes. 
     
     
         61 . The ophthalmic lens of  claim 46 , wherein the one or more eyelid profiles comprise a Cartesian coordinate system by a second order polynomial of the form: a0+a1·x+a2·x2, where a0 represents the superior/inferior palpebral aperture, the distance between the pupil center to the edge of the upper/lower eyelid in primary gaze, a1 is the slope of the eyelid at the location of the superior/inferior palpebral aperture and a2 is the curvature at that same location, and x is the distance along the horizontal direction of the Cartesian coordinate system with its origin at the center of the pupil.