How do eyes grow polyps?

Polyp in the eye, mostly refers to pterygium, is a kind of excrescence tissue on the bulbar conjunctiva and cornea of the palpebral fissure. After invading the cornea, it becomes increasingly enlarged and even covers the pupil area, seriously affecting vision. It is the degeneration and hypertrophy of the bulbar conjunctiva and subconjunctival tissue of the palpebral fissure, and develops into a triangle into the cornea. It is mostly seen in outdoor workers, most of which are fishermen and farmers. It may be related to chronic stimulation such as dust, sunlight and smoke for a long time. If pterygium is small and has no obvious change, it can be observed and left untreated temporarily; if it grows faster, even covering the pupil area affects vision, it is recommended to perform pterygium excision.