GEN 8

Photochromic dyes for use in the manufacture of ophthalmic lenses, lens blanks, contact lenses and contact lens blanks

Spectacle lenses, eyeglass lenses, contact lenses, sunglass lenses, optical lenses, ophthalmic lenses, lens blanks, contact lens blanks, eyeglasses, eyeglass frames, sunglasses, photochromic eyeglass lenses