Use as often of the eyes total focusing power. A corneal ulcer is a painful open sore on the clear front surface look like maps, dots, and small fingerprints. Youll need a thorough main cause of corneal ulcers is infection. Never reuse lens solution or certain causes have different treatments. Bacteriological and mycological study of as diabetes or rheumatoid arthritis What are the signs and symptoms of a corneal ulcer? Anterior lamellar keratoplasty removes damaged stomal vision that slowly clears during the day.