The suture lysis lens is primarily used for the post-operative management of sutures following trabeculectomy and some glaucoma drainage device surgeries to alter filtration rate and manage intraocular pressure. New and pristine for every patient; no dust, scratches, fingerprints or water marks. Unlike traditional reusable lenses, Katena single use lenses have anti-reflection coatings, except where noted, and no water marks. Each lens comes in a sterile pouch. Single use lenses supplied in quantities of 10.