A pterygium is an elevated, superficial, external ocular mass that forms over the perilimbal conjunctiva and extends onto the corneal surface.
翼状胬肉是一种高出表面的，表浅的，外在的眼部肿块，其形成于角巩缘处的结膜，并延伸至角膜表面。
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Objective: to evaluate the post-operative effect and complication of different conjunctiva flaps which is corneal limbus-based or fornix-based conjunctival flap in the combined trabeculectomy.
Tear secretion was decreased so that patients with dry eyes, and a burning sensation, a serious ocular conjunctiva, corneal infection and ulcers, and may result in uveitis, cataract and glaucoma.