Hello, according to the narrative, it may be that pterygium is a kind of bulbar conjunctiva, with a thick eyelid fissure, and the fibrous vascular tissue under it invades the cornea in a triangle shape. The incidence may be related to ultraviolet radiation, dry climate and exposure to wind and dust. Long-term ultraviolet irradiation leads to corneal limbal stem cell damage and pterygium.

No treatment will have no effect on vision, and surgical resection will be performed when the vision is seriously affected. Postoperative recurrence rate is extremely high. Postoperative b-ray irradiation and mitomycin C application can reduce recurrence.