To provide solution for contact lenses that gives sustainable hydrophilic properties and antifouling properties to contact lenses.

The solution for contact lenses contains a high molecular compound expressed by the structural formula; wherein, R1 denotes a hydrogen atom or a methyl group; R2 denotes a 1C to 23C direct chain, branched chain or cyclic alkyl group; R3 to R6 denote 1C to 8C direct chain or branched chain alkyl group, respectively; m and n are the integers of 1 to 4; and X, Y and Z are positive integers.