Ophthalmic Knives Market: How Are Cataract Surgery Knives Driving Market Volume? Ophthalmic surgical knives for cataract surgery — the keratomes, slit knives, capsulotomy knives, and phaco incision knives used in the approximately twenty-five million annual global cataract surgeries — represent the foundational and highest-volume ophthalmic knife market, with the Ophthalmic Knives Market reflecting cataract surgery as the primary commercial driver of ophthalmic...