Methods 110 cases of primary pterygium, 50 cases of them were given surgery including excision and conjunctival trasplantation. 60 cases were given simple excision as a control.

• 方法初发性翼状胬肉110眼行逆行胬肉切除，球结膜移植术50眼，行单纯切除术60眼作对照。