The cornea is the clear tissue at the front and center of the eye. Its transparency permits light to pass into the eye, through the pupil, lens and onto the retina at the back of the eye.
There are several common causes of corneal disease, including the following:
- Bacterial, fungal, or viral keratitis, as well as parasitic diseases
- Abrasions or exposure to toxic chemicals
- Dystrophies and degenerative corneal disorders
- Fuchs’ dystrophy, map-dot-fingerprint dystrophy, or lattice corneal dystrophy
- Autoimmune disorders
- Wegener’s disease, rheumatoid arthritis, or lupus
- Nutritional deficiencies
- Vitamin A deficiency
Symptoms of Cornea Problems
The term corneal disease refers to many conditions that affect this part of your eye. These include infections, tissue breakdown, and other disorders you get from your parents.
Your cornea usually heals itself after most minor injuries or infections. But during the healing process, you might notice symptoms like:
- Blurred vision
- Extreme sensitivity to light