A pterygium is a pinkish, triangular tissue growth on the cornea of the eye. It typically starts on the cornea near the nose. It may slowly grow but rarely grows so large that it covers the pupil and impairs vision. Often both eyes are involved. The cause is unclear.
Symptoms: Pinkish, triangular tissue growth on .
Treatment: None, eye lubricant, surgery
Other names: Surfer’s eye.