Patent ID: 7847016

Claim:
A soft contact lens, comprising: a core material, particles of a pigment distributed in the core material, and a hydrophilic surface, wherein the core material is a polymerization product of a prepolymerization mixture including an oxyperm polymerizable material and an ionoperm polymerizable material, wherein the oxyperm polymerizable material comprises a member selected from the group consisting of a siloxane-containing macromer, a siloxane-containing monomers, a fluorine-containing macromer, a fluorine-containing monomer, a carbon-carbon triple bond-containing macromer, and a carbon-carbon triple bond-containing monomer, wherein the ratio of weight percentage of the oxyperm polymerizable material to the ionoperm polymerizable material is selected to impart to the contact lens an oxygen transmissibility (Dk/t) of at least about 60 barrers/mm, wherein the particles of the pigment have an average or median particle size of less than or equal to about 4 μm as measured by HORIBA LA-910 particle size analyzer, and wherein the particles of the pigment are present in the contact lens in an amount to provide the contact lens an optical transmission of greater than 80%.