What is a pterygium?
A person with a pterygium has a web-like thickening of the thin membrane that covers the white part of the eye, called the conjunctiva. The thickening occurs in the part of the conjunctiva nearest to the nose. A pterygium may be white or yellow. Rarely, a pterygium may spread across the cornea, interfering with vision. The cause for pterygium is unknown.

What are the symptoms of a pterygium?
Symptoms that may occur with a pterygium include eye redness, itching, or tearing. Rarely, a person with a pterygium may experience blurry vision.

How does the doctor treat a pterygium?
Treatment for pterygium may include moisturizing eye drops, lubricating eye ointment, corticosteroid eye drops, or surgery to remove the pterygium.