| abstract |
The invention provides a silicone monomer which is suitable for the manufacture of ophthalmic devices, such as contact lenses, intraocular lenses, and keratoprosthesis, a monomer composition containing the monomer, and a polymer which fulfills both surface hydrophilicity and oxygen permeability at the same time. The silicone monomer of the present invention is represented by the formula (1a) or (1b): n n n n n n n n n n (X: a monovalent C2 to C6 organic group having one or more —OH and optionally one 0 or N in its main chain; Z 1 to Z 9 : a C1 to C4 alkyl group; n: 1 to 3; a and b: 0 or 1). |