Corneal transplants may improve vision among patients with significant corneal clouding. Corneal transplantation is not usually indicated during corneal hydrops. The human cornea borders with the sclera via the corneal limbus. Cataracts and cloudiness of the cornea (corneal opacity) are common. There can be ocular manifestations of ichthyosis, such as corneal and ocular surface diseases. Paul specializes in cataract and glaucoma surgeries, LASIK procedures, and corneal transplants. Keratoconjunctivitis is the combination of conjunctivitis and keratitis (corneal inflammation). The limbal ring is thought to contain corneal epithelium stem cells. Pilocarpine is sometimes used immediately before certain types of corneal grafts and cataract surgery. Other optical causes are astigmatism or more complex corneal irregularities. Perforating ulceration which may perforate, resulting in corneal opacification and staphyloma formation. Ingrown eyelashes will rub the eye causing extensive corneal ulcerations. The limbus is a common site for the occurrence of corneal epithelial neoplasm. Diagnosis of FVR is usually by clinical signs, especially corneal ulceration. Preservatives can be toxic and cause damage to the corneal epithelium.