Pterygium

A Pterygium is a wedge-shaped fibrovascular growth of conjunctiva (the surface tissue of the white of the eye) that extends onto the cornea. Pterygia are benign lesions that can be found on either side of the cornea.

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It is thought that prolonged exposure to ultraviolet light may contribute to the formation of pterygia. Pterygia are more often seen in people from tropical climates, but can be found in others as well.

Pterygia are often asymptomatic, and many do not require immediate treatment. However, some pterygia become red and inflamed from time to time. Large or thick pterygia may bother some people due to a persistent foreign body sensation in the eye.


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