OPTICAL MATERIAL AND OPHTHALMIC LENS MADE OF THE SAME

摘要

An optical material obtained by using metal oxide nanoparticles is provided which has a high refractive index while securing excellent transparency and oxygen permeability. Further, an ophthalmic lens such as a contact lens or an intraocular lens is provided by using the same. The optical material is obtained by polymerizing a monomer composition comprising at least one polymerizable unsaturated bond-containing monomer in which metal oxide nanoparticles, which have previously been modified by silane coupling agents, are uniformly dispersed, while maintaining a stable dispersion of the metal oxide nanoparticles.