Gas permeable contact lenses

CONTACT LENSES, NAMELY, DISPOSABLE CONTACT LENSES

Collagen for medical use; biological implants, namely, biological eye tissue intended for subsequent implantation, biological skin tissue intended for subsequent implantation, biological cardiac tissue intended for subsequent implantation, biological tissue grafts; biological corneal, cardiac, nerve, and skin tissue for implantation; surgical implants comprised of living tissues; biological materials in the nature of biological preparation for the treatment of eye disease for medical purposes...