The Rynco (TM) RX-56 lens.
D000085:Acetates; D002087:Butyrates; D002482:Cellulose; D003261:Contact Lenses; D006801:Humans; D011108:Polymers
D000085:Acetates; D002087:Butyrates; D011108:Polymers; D002482:Cellulose