Provided is an intraocular lens that inhibits secondary cataract which occurs after insertion of an intraocular lens and that is free from the adherence and deposition of a protein, etc., to/on the front surface of the lens, and the intraocular lens has an optic portion with a front surface and a back surface, said front surface and said back surface being different from each other in the property of adhering to a protein and satisfying the relationship of the expression (x), PAF
