Pterygium is a benign tissue growth on the surface of the eye. If untreated it has the potential to affect your vision by covering your pupil or by causing astigmatism.
What is pterygium?
A pterygium is a benign conjunctival tissue growth on the surface of the eye. Typically, it begins as a small reddened and thickened area in the corner of the eye – usually the corner that’s closest to the nose – and is most commonly triangular in shape. It can often extend across the surface of the cornea. Not only can it look unattractive, but also if left untreated it has the potential to affect your vision by covering the pupil or creating astigmatism.