A pterygium is a pinkish, triangle shaped tissue that grows on the surface of the cornea. It starts at the inner corner of the eye and grows toward the center. Some grow slowly throughout a person’s life, while others may eventually stop. In extreme cases, it can affect vision by covering the pupil of the eye.
Causes & Risk Factors:
The exact cause is unknown. The main risk factor is high exposure to sunlight, sand, and wind. It is more common in men and in adults aged 20-40. To reduce your risk, you should wear sunglasses or hats in areas with direct sunlight.