Vinyl Alcohol Ophthalmic Lens Molds, Ophthalmic Lenses Molded Therein, And Related Methods

Abstract

Ophthalmic lens molds made from at least one vinyl alcohol copolymers with high amorphous content, ophthalmic lenses including silicone hydrogel contact lenses formed using these molds, packaged ophthalmic lenses present in a solution comprising the at least one vinyl alcohol copolymer with high amorphous content, and related methods are described. The methods of manufacturing ophthalmic lenses can use wet demolding, delensing or demolding and delensing processes involving dissolving the molds in water or an aqueous solution.

1 - 18 . (canceled) 
     
     
         19 . A packaged silicone hydrogel contact lens body, comprising:
 a blister package formed of a hydrophobic polymer material;   a cast-molded polymerized lens body comprising the reaction product of a polymerizable composition, the polymerizable composition comprising at least one silicone monomer, silicone macromer, silicone prepolymer or any combination thereof, and at least one hydrophilic monomer; and   a liquid comprising the dissolution product of at least one vinyl alcohol copolymer with high amorphous content in a packaging solution.   
     
     
         20 . A mold member for cast molding a silicone hydrogel contact lens body, comprising:
 a mold member comprising a molding surface and a non-molding region, wherein at least the molding surface of the mold member comprises at least one vinyl alcohol copolymer with high amorphous content.