Red-light filtering ink binder for contact lenses

A colored contact lens, comprising:

• a pupil section;
• an iris section having an area and circumferentially surrounding the pupil section;
• and
• a colored pattern extending across a portion of the area of the iris section in a geometrical configuration to provide from about 95% to about 98% filtering of red-light transmission through the colored contact lens at a wavelength of from about 550 nanometers (nm) to about 800 nm, the colored pattern comprising a polymerization product of a red-light filtering ink binder comprising (a) a solvent, (b) a silicone copolymer comprising a reaction product of (i) a copolymerization product of a polymerization composition comprising (1) an alkylacrylamide monomer, (2) a hydroxyethyl acrylate monomer, (3) a non-bulky organosilicon-containing monomer having an ethylenically unsaturated reactive end group, and (4) a bulky siloxane monomer having an ethylenically unsaturated reactive end group, and (c) a red-light filtering compound filtering from about 95% to about 98% of red-light transmission through the colored contact lens at a wavelength of from about 550 nm to about 800 nm, with (ii) a monomer having a reactive functionality complementary to the hydroxyl moiety of the hydroxyethyl acrylate monomer and a polymerizable ethylenically unsaturated reactive end group, and (c) a red-light filtering compound filtering from about 95% to about 98% of red-light transmission through the colored contact lens at the wavelength of from about 550 nm to about 800 nm through a colored contact lens.