![]() inability to move eye in all directions.People who have a deep injury or corneal disease may experience: The area usually heals on its own with no lasting impact on vision.ĭeeper injuries can cause corneal scarring resulting in a haze on the cornea that can impair vision. Just like other body parts, the cornea can heal from minor injuries or scratches. Contact lenses, injuries, drugs, and nutritional deficiencies can cause open sores. Corneal ulcer: An eye infection that causes an open sore on the cornea.Typically occurs in people who have connective tissues diseases, such as rheumatoid arthritis. Peripheral ulcerative keratitis: An eye disorder that causes inflammation and ulceration of the cornea.Blisters can rupture causing severe pain, eye discomfort, and vision impairment. Bullous keratopathy: An eye disorder marked by blister-like swelling of the cornea.Herpes simplex keratitis: An eye infection caused by the herpes simplex virus.The cornea is also very helpful in filtering out damaging ultraviolet light (UV) from the sun. The cornea acts as a direct barrier keeping out dirt, germs, and other harmful or foreign particles that could harm the eye. Many disorders that affect the cornea also affect the fluid-filled space between the iris and the inner part of the cornea. ![]() ![]() It has a clear dome-shaped surface that covers the front of the eye. The cornea is the outermost layer of the eye. Share on Pinterest The cornea keeps dirt and germs out of the eye and also filters UV light from the sun.Ī problem with the cornea is the most common cause of eye pain.
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