The present invention provides a safe ocular lens material having high
oxygen permeability, excellent surface wettability, the excellent
lubricity/easy lubricating property of surface, little in surface
adhesive and superior flexibility and stress relaxation, in addition,
suppressing elution of a monomer from the final product. That is, the
present invention relates to an ocular lens material comprising at least
one kind of a compound (A) having an ethylenically unsaturated group and
polydimethylsiloxane structure through a urethane bond and at least one
kind of a pyrrolidone derivative (B) in which a polymerizable group is a
methylene group.