No.exual.redilection.xists with Wegener granulomatosis. Medline . The doctor will then shine a special violet light onto your eye to look for any areas that appear green through a special microscope called a slit-lamp. Medline . Regardless of the visibility of the ulcer, a yellow dye may be used to see the affected area more easily. An ulcer of the cornea heals by two methods: migration of surrounding epithelial cells followed by mitosis dividing of the cells, and introduction of blood vessels from the conjunctiva . Deeper, more serious ulcers may require sutures, conjunctiva grafts, conjunctiva flaps, the insertion of soft contact lenses, or even a corneal transplant. The damage would be similar to a scrape or cut on your skin; both problems result in an unprotected wound. Ulcers of the cornea are frequent in those individuals who are contact lens wearers, particularly those who wear them to bed. Diagnostic dyes are often used to look for corneal erosions or ulcers.
Arch Ophthalmol. 2010 Aug. 1288:1022-8. In ophthalmology, a corneal ulcer usually refers to having an infectious aetiology while the term corneal abrasion refers more to physical abrasions. Vanathi M, Sharma N, Titiyal J. Protozoa infection like Acanthamoeba keratitis is characterized by severe pain and is associated with contact lens users swimming in pools. Yanoff M, Cameron D. Bacterial corneal ulcers generally follow a traumatic break in the corneal epithelium, thereby providing an entry for bacteria.