Pterygium & Pinguecula
Pterygium is a benign thickening of the outer coating (conjunctiva) of the eye that grows onto the cornea. As a pterygium grows, it may become red and irritated. Eventually, it may cause visual disturbances by disrupting the normally smooth surface of the cornea. In severe cases, a pterygium can block a patient’s vision altogether.
A pinguecula is a common, non-cancerous growth of the clear, thin tissue (conjunctiva). The growth is raised slightly from the surface of the white part of the eye (sclera). It looks like a small, yellowish, bump near the cornea. It can appear on either side of the cornea, but occurs more often on the nose (nasal) side. The growth may increase in size over many years.