Corneal Infections & Diseases

The cornea can be damaged after a foreign object has penetrated the tissue, such as from a poke in the eye. At other times, bacteria or fungi from a contaminated contact lens can pass into the cornea. Situations like these can cause painful inflammation and corneal infections called keratitis. These infections can reduce visual clarity, produce corneal discharges, and perhaps erode the cornea. Corneal infections can also lead to corneal scarring, which can impair vision and may require a corneal transplant.

What is the cornea?

The cornea is the clear front of the eye that covers the colored iris and the round pupil. Light is focused while passing through the cornea so we can see. To stay clear the cornea must be healthy.

How can an unhealthy cornea affect vision?

If the cornea is damaged it may become swollen or scarred. In either case, its smoothness and clarity may be lost. The scars, swelling or an irregular shape cause the cornea to scatter or distort light, resulting in glare or blurred vision.

The operation

The eyelid is gently opened. Looking through a surgical microscope, your doctor measures the eye for the size of the corneal transplant. The diseased or injured cornea is carefully removed form the eye. Any necessary additional work within the eye, such as removal of a cataract, is completed. The clear donor cornea is then sewn into place.

Corneal Transplants are generally performed on an outpatient basis. You will have a short stay in the recovery area and then be allowed to return home. You should plan to have a friend or relative drive you home.

A successful corneal transplant requires care and attention on the part of both patient and physician. However, no other surgery has so much to offer when the cornea is deeply scared or swollen. The vast majority of people who undergo corneal transplants are happy with their improved vision.