Silicone contact lenses with wrinkled surface

Abstract

At least one of the surfaces of a silicone contact lens is a wrinkled surface, providing the contact lens surface with a desired topography. The wrinkled surface may include random ridges, either over the entire surface of the lens, or in a desired pattern on the surface of the lens.

1 . A contact lens comprising a silicone contact lens, wherein a surface of the lens is wrinkled and includes raised ridges. 
   
   
       2 . The contact lens of  claim 1 , wherein the wrinkled surface is on a posterior surface of the contact lens, said wrinkled surface facilitating fluid exchange between the lens and a cornea when the lens is worn. 
   
   
       3 . The contact lens of  claim 1 , wherein the wrinkled surface is a silicate surface layer. 
   
   
       4 . The contact lens of  claim 1 , comprised of a silicone hydrogel copolymer. 
   
   
       5 . The contact lens of  claim 4 , wherein the silicone hydrogel copolymer is the reaction product of a monomeric mixture comprising a polysiloxane-containing urethane prepolymer.