Intraocular lens and process for the production of one-piece intraocular lens

A process for the production of a one-piece intraocular lens having an optic portion which functions as a substitute lens for a crystalline lens and a haptic portion for fixing and holding the optic portion in a predetermined position in an eye, the process comprising polymerizing an optic-portion-forming monomer mixture containing

• (a) 5 to 20% by weight of 2-[2-(perfluorooctyl)ethoxy]-1-methylethyl (meth)acrylate of the above formula (I),
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• wherein R1 is hydrogen or methyl,
• (b) 40 to 70% by weight of 2-phenylethyl (meth)acrylate of the formula (II),
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• wherein R2 is hydrogen or methyl,
• (c) 25 to 50% by weight of alkyl (meth)acrylate of the formula (III),
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• wherein R3 is hydrogen or methyl and R4 is a C4-C12 linear, branched or cyclic alkyl group, and
• (d) 0.5 to 5% by weight, based on the total amount of the components (a) to (c), of a crosslinking monomer, with keeping the monomer mixture in contact with a haptic-portion-forming material containing polymethyl methacrylate, or polymerizing a haptic-portion-forming monomer containing methyl methacrylate with keeping the haptic-portion-forming monomer in contact with an optic-portion-forming material formed of a copolymer obtained by polymerization of the above monomer mixture, to integrate the optic-portion-forming material and the haptic-portion-forming material, and cutting and polishing the integrated product.