2-Hydroxyethyl methacrylate polymer with 1-vinyl-2-pyrrolidinone and ethylene dimethacrylate 2-Hydroxyethyl methacrylate-ethylene glycol dimethacrylate-N-vinyl-2-pyrrolidone copolymer 2-Propenoic acid, 2-methyl-, 1,1′-(1,2-ethanediyl) ester, polymer with 1-ethenyl-2-pyrrolidinone and 2-hydroxyethyl 2-methyl-2-propenoate 2-Propenoic acid, 2-methyl-, 1,2-ethanediyl ester, polymer with 1-ethenyl-2-pyrrolidinone and 2-hydroxyethyl 2-methyl-2-propenoate 2-Propenoic acid, 2-methyl-, 2-hydroxyethyl ester, polymer with 1,2-ethanediyl bis(2-methyl-2-propenoate) and 1-ethenyl-2-pyrrolidinone 2-Pyrrolidinone, 1-ethenyl-, polymer with 1,2-ethanediyl bis(2-methyl-2-propenoate) and 2-hydroxyethyl 2-methyl-2-propenoate Benz 42 Ethylene dimethacrylate-hydroxyethyl methacrylate-N-vinyl-2-pyrrolidinone polymer Ethylene glycol dimethacrylate-2-hydroxyethyl methacrylate-1-vinyl-2-pyrrolidinone copolymer Ethylene glycol dimethacrylate-2-hydroxyethyl methacrylate-1-vinyl-2-pyrrolidone copolymer Ethylene glycol dimethacrylate-2-hydroxyethyl methacrylate-N-vinyl-2-pyrrolidinone copolymer Ethylene glycol dimethacrylate-2-hydroxyethyl methacrylate-N-vinyl-2-pyrrolidone copolymer Ethylene glycol dimethacrylate-2-hydroxyethyl methacrylate-N-vinylpyrrolidinone copolymer Ethylene glycol dimethacrylate-2-hydroxyethyl methacrylate-N-vinylpyrrolidone copolymer Ethylene glycol dimethacrylate-hydroxyethyl methacrylate-N-vinylpyrrolidone polymer Ethylene glycol dimethacrylate-hydroxyethyl methacrylate-vinylpyrrolidone copolymer Ethylene glycol dimethacrylate-hydroxyethyl methacrylate-vinylpyrrolidone polymer Gold Medalist Toric Hefilcon Hefilcon A Hefilcon B Hefilcon C Hefilcon D HydroCurve I Hydroxyethyl methacrylate-vinylpyrrolidone-ethylene glycol dimethacrylate copolymer Igel 56 SL 55