Soft contact lenses

摘要: A soft contact lens made of a copolymer composed essentially of: (a) from about 30 to 60 parts by weight at least one monomer selected the group consisting long chain alkyl acrylates and methacrylates represented general formula: ##STR1## where R 1 is hydrogen atom or methyl group, 2 straight chained branched having 5 18 carbon atoms; (b) 40 70 hydrophilic dimethylacrylamide, N-vinylpyrrolidone, hydroxyalkyl acrylate methacrylate; (c) 0.05 2.0 cross-linking agent; water content 25 50% weight.