Silicone-containing hard contact lens materials having increased oxygen permeability.

摘要

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.