Pterygium
Overview
A pterygium is a noncancerous, triangular growth that may occur on one or both eyes. It's more common in people who spend a lot of time in the sun, such as people who work outdoors.
Symptoms
The painless growth may be slightly raised and contain obvious blood vessels. It may cause irritation and possibly affect vision.
Treatments
Treatment usually isn't necessary. Eyedrops or surgery may help in severe cases.
