What causes pterygia and pingueculas and how do I know if I have this condition?
The growth is usually white in color, but it may also be gray or yellow. They are more commonly seen in people from sunny or windy climates. People who are exposed to UV radiation and do not wear eye protection are more likely to develop a pinguecula or pterygia. Pingueculas are usually benign causing only tearing and irritation. Pterygia generally cause more symptoms. In more severe cases of pterygia, there can be tension on the cornea and astigmatism (irregularly shaped cornea) develops, requiring correction with astigmatic glasses.
