A biocompatible copolymer material for manufacturing optical clear hydrophobic ophthalmologic implant, formed by polymerization of a mixture comprising: a) 35-70 wt.% of urethane di(meth)acrylate oligomer with terminal (meth)acrylate groups being prepared from the components (meth)acrylate, diisocyanate and polyol and having the following structure: hydroxy(meth)acrylate' - [(diisocyanate') -POLYOL- (diisocyanate")] - hydroxy(meth)acrylate", wherein one isocyanate group of diisocyanate' and diisocyanate", respectively, is reacted with the hydroxyl group of the hydroxy(meth)acrylate' and hydroxy(meth)acrylate", respectively under formation of a urethane group, and wherein the other one of the isocyanate groups of diisocyanate' and diisocyanate", respectively, is reacted with a hydroxyl group of the polyol under formation of a urethane group, wherein hydroxy(meth)acrylate' and hydroxy(meth)acrylate" may be the same or different, wherein diisocyanate' and diisocyanate" may be the same or different, wherein the polyol in urethane di(meth)acrylate oligomer is any aliphatic branched chain diol, including mixtures thereof, b) 30-65 wt.% of component b) being selected from the group (meth)acrylate monomers of the group of alkyl (meth)acrylates, aryl (meth)acrylates, alicyclic (meth)acrylates, fluorinated (meth)acrylates, silicon containing (meth)acrylates, any of aromatic or alkyl esters of the unsaturated non (meth)acrylic carboxylic acids and mixtures thereof, wherein the amount of (meth)acrylate monomers comprising an aromatic moiety of component b) is at least 50 % by weight, c) not less than 0.2 wt.-% UV-light absorbing compound being a polymerizable UV-absorber, comprising benzophenone type UV-light absorbers, benzotriazole type UV-light absorbers or their combination, and d) polymerization initiator; wherein the mentioned biocompatible copolymer material for manufacturing hydrophobic ophthalmologic implant are hydrophobic with equilibrium water content at 37°C of less than 3.0%, wherein the amount of (meth)acrylic acid in the composition of the biocompatible copolymer material as a copolymer is ≤ 3 % by weight. a) 35-70 wt.% of urethane di(meth)acrylate oligomer with terminal (meth)acrylate groups being prepared from the components (meth)acrylate, diisocyanate and polyol and having the following structure: hydroxy(meth)acrylate' - [(diisocyanate') -POLYOL- (diisocyanate")] - hydroxy(meth)acrylate", wherein one isocyanate group of diisocyanate' and diisocyanate", respectively, is reacted with the hydroxyl group of the hydroxy(meth)acrylate' and hydroxy(meth)acrylate", respectively under formation of a urethane group, and wherein the other one of the isocyanate groups of diisocyanate' and diisocyanate", respectively, is reacted with a hydroxyl group of the polyol under formation of a urethane group, wherein hydroxy(meth)acrylate' and hydroxy(meth)acrylate" may be the same or different, wherein diisocyanate' and diisocyanate" may be the same or different, wherein the polyol in urethane di(meth)acrylate oligomer is any aliphatic branched chain diol, including mixtures thereof, hydroxy(meth)acrylate' - [(diisocyanate') -POLYOL- (diisocyanate")] - hydroxy(meth)acrylate", wherein one isocyanate group of diisocyanate' and diisocyanate", respectively, is reacted with the hydroxyl group of the hydroxy(meth)acrylate' and hydroxy(meth)acrylate", respectively under formation of a urethane group, and wherein the other one of the isocyanate groups of diisocyanate' and diisocyanate", respectively, is reacted with a hydroxyl group of the polyol under formation of a urethane group, wherein hydroxy(meth)acrylate' and hydroxy(meth)acrylate" may be the same or different, wherein diisocyanate' and diisocyanate" may be the same or different, wherein the polyol in urethane di(meth)acrylate oligomer is any aliphatic branched chain diol, including mixtures thereof, b) 30-65 wt.% of component b) being selected from the group (meth)acrylate monomers of the group of alkyl (meth)acrylates, aryl (meth)acrylates, alicyclic (meth)acrylates, fluorinated (meth)acrylates, silicon containing (meth)acrylates, any of aromatic or alkyl esters of the unsaturated non (meth)acrylic carboxylic acids and mixtures thereof, wherein the amount of (meth)acrylate monomers comprising an aromatic moiety of component b) is at least 50 % by weight, c) not less than 0.2 wt.-% UV-light absorbing compound being a polymerizable UV-absorber, comprising benzophenone type UV-light absorbers, benzotriazole type UV-light absorbers or their combination, and d) polymerization initiator;