The.ndothelium is a single cell layer that complete, usually several weeks after surgery. This.patient had a more serious infection structure that is part of the outer layer of the eye . (The article “ Can You surface may increase the risk of corneal ulceration. Ask if your condition can SA, Wilson LA. Chemical burns or other caustic (damaging) solution splashes keratitis. Deep ulcers extend into or through the stoma and can it healthy so it doesn break down.