The term "corneal disease" refers to a variety of conditions that affect mainly the cornea. These include infections, degenerations, and many other disorders that may arise mostly as a result of heredity.
The term "corneal disease" covers the variety of conditions that affect the cornea, the clear outer layer of the eye. The cornea can often repair itself after injury or disease, but more serious conditions -- infections, degenerative diseases, deterioration -- need treatment.
Experiencing symptoms of any eye condition can be scary. If you do have symptoms, see a doctor as soon as possible. Treatment can often be as simple as eye drops that will take care of the problem.
And although corneal diseases that result from hereditary factors, like dystrophies, can't be prevented, keep in mind vision can often be preserved through early detection and treatment.