Corneal Disease

Diseases of the cornea (the transparent membrane at the front of the eye that helps focus light rays) are often the most painful of eye disorders.

Causes of corneal disease range from bacterial, fungal and viral infections, to injury, allergic reactions, nerve impairments, improper moistening and covering by the eyelids, and degenerative disorders.

Corneal diseases caused by bacterial infection can often be treated with antibiotics. While infections of the cornea are relatively uncommon, when they occur they are extremely serious and must be treated promptly.

To date there has been limited success in treating corneal disease caused by viruses. Researchers are trying to develop drugs for infections of this kind.

Corneal disease or injuries can leave the cornea scarred or opaque, even with treatment, blocking the passage of light and resulting in impaired vision or blindness. In such cases, a corneal transplant may be able to restore sight. As a result of intensive research, this is one of the most successful types of tissue replacements.