A contact lens material comprising a transparent gel comprising a polycarbonate resin and a hydrophilic polymer obtained by polymerizing a hydrophilic monomer, wherein "transparent" means having a visible light transmittance (%T) of 60 % or more; wherein the polycarbonate resin is derived from a compound and at least one compound selected from the group consisting of a compound represented by the general formula and a compound represented by the general formula; a highly polar molecular weight control modifier (chain terminator) and a compound forming a carbonic acid ester; wherein the transparent gel has an interpenetrating network structure of the resin and the hydrophilic polymer; wherein the compound is 1,1-bis(4-hydroxyphenyl)-1-phenylethane and/or 1,1-bis(4-hydroxy-phenyl)cyclohexane; and wherein the hydrophilic monomer is N-vinyl pyrrolidone, N,N-dimethylacrylamide and/or N-methyl-3-methylidene pyrrolidone; wherein R 7 is an aliphatic group of C1 to C6 or only denotes a bond, Y is a group shown by the formula: -S-, -SO 2 -, -O-, -SO-, wherein each of R 8 and R 9 is a hydrogen atom or a group selected from the group consisting of an alkyl group of C1 to C10, an alkenyl group of C2 to C10, an alkoxy group of C1 to C10 and an aryl group of C6 to C12, or R 8 and R 9 as well as R 10 and R 11 are groups to form a carbon ring or a heterocyclic ring by combining with each other respectively, and those groups, when having a carbon atom, may have a substituent selected from the group consisting of an alkyl group of C1 to C5, an alkenyl group of C2 to C5 and an alkoxy group of C1 to C5, b is an integer of 0 to 20, m is an integer of O to 4, each of Z 1 to Z 6 is independently a group selected from the group consisting of -R 12, wherein each of R 12 to R 16 is independently a hydrogen atom or a group selected from the group consisting of an alkyl group of C1 to C5, an aryl group of C6 to C12, an alkenyl group of C2 to C5, an alkoxy group of C1 to C5 and an aralkyl group of C7 to C17, and those groups, when having a carbon atom, may have a substituent selected from the group consisting of an alkyl group of C1 to C5, an alkenyl group of C2 to C5 and an alkoxy group of C1 to C5, c is an integer of 0 to 100; wherein each of R 17 to R 24 is independently a hydrogen atom or a group selected from the group consisting of an alkyl group of C1 to C5, an aryl group of C6 to C12, an alkenyl group of C2 to C5, an alkoxy group of C1 to C5 and an aralkyl group of C7 to C17, and those groups, when having a carbon atom, may have a substituent selected from the group consisting of an alkyl group of C1 to C5, an alkenyl group of C2 to C5 and an alkoxy group of C1 to C5, R 25 is an aliphatic group of C1 to C6 or only denotes a bond, W is a homopolymer or a random copolymer of -SiO(R 26)(R 27)-and/or -SiO(R 28)(R 29)- and a polymerization degree thereof is O to 200, and each of R 26 to R 29 is independently a hydrogen atom or a group selected from the group consisting of an alkyl group of C1 to C5, an aryl group of C6 to C12, an alkenyl group of C2 to C5, an alkoxy group of C1 to C5 and an aralkyl group of C7 to C17, and those groups, when having a carbon atom, may have a substituent selected from the group consisting of an alkyl group of C1 to C5, an alkenyl group of C2 to C5 and an alkoxy group of C1 to C5, wherein the highly polar molecular weight control modifier (chain terminator) is a compound represented by a general formula and/or and/or; wherein Q is a direct bond or a hydrocarbon group of C1 to C6, R 30 is a hydrogen atom or a group selected from the group consisting of an alkyl group of C1 to C10, an alkenyl group of C2 to C10, an alkoxy group of C1 to C10 and an aryl group of C6 to C12, R 31 is a hydrogen atom or a hydrocarbon group of C1 to C20; wherein R 30 is a hydrogen atom or a group selected from the group consisting of an alkyl group of C1 to C10, an alkenyl group of C2 to C10, an alkoxy group of C1 to C10 and an aryl group of C6 to C12, R 32 is a hydrocarbon group of C1 to C20; wherein R 30 is a hydrogen atom or a group selected from the group consisting of an alkyl group of C1 to C10, an alkenyl group of C2 to C10, an alkoxy group of C1 to C10 and an aryl group of C6 to C12, R 33 is a hydrocarbon group of C1 to C20.