A pterygium is a fleshy triangular area of tissue, usually on the inner corner of the eye, that can also grow onto the cornea. Sometimes, it extends toward the center of the cornea so that it interferes with vision. As the pterygium develops, it may warp the cornea, causing astigmatism.
The exact cause of pterygia isn't known, but it's thought to be linked to:
Chances are, you'll notice a pterygium when you look in the mirror. It will look something like the photograph above. Your eye doctor can also diagnose it during a routine eye exam.
Eye drops or ointment can be used to reduce the irritation caused by a pterygium. If the pterygium grows toward the central cornea, it often needs to be removed surgically. Outpatient surgery is very successful but there is a 25% chance that the growth will recur. If your doctor of optometry deems it necessary, the corneal specialists at Omni Eye Services are happy to provide a surgical consult at any time.
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