Silicone-containing hard contact lens material having...

Details Silicone-containing hard contact lens material having... Silicone-containing hard contact lens material having...

C - Chemistry, Metallurgy

08

F

88/40, 402/9

C08F 230/08 (2006.01) G02B 1/04 (2006.01)

Patent

CA 1205247

SILICONE-CONTAINING HARD CONTACT LENS MATERIALS HAVING INCREASED OXYGEN PERMEABILITY ABSTRACT This invention relates to an improved hard contact lens polymeric material comprising a siloxane-based ester monomer, solely, or in combination with methacrylic acid-derived cross- linking agents, alkanol esters, and/or hydrophilic monomers. Hard contact lenses made from these polymeric materials have an increased oxygen permeability and surface wettability and thus have potential use in extended-wear lens applications. -1-

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