Pterygium excision with amniotic membrane graft

Abstract

Pterygium is characterized by encroachment of an abnormal fibrovascular tissue from the bulbar conjunctiva onto the cornea (Arch Ophthalmol 115:1235-1240, 1997). Upon reaching the corneal surface, this fibrovascular tissue exerts cicatricial traction that flattens the caruncle and obliterates the semilunar fold (Arch Ophthalmol 130:39-49, 2012). The indications for pterygium surgery include reduced vision due to obscuration of the optical center of cornea, irregular astigmatism, chronic irritation, recurrent inflammation, motility restriction, and cosmesis. Numerous surgical techniques have been described, but the main concern of pterygium surgery is the unpredictable rate and timing of recurrence (Ocul Surf 12:112-119, 2014). The underlying cause of pterygia is thought to be secondary to UV light exposure and arid conditions. Patients should have been evaluated and deemed appropriate for such surgical intervention. Patients should have been educated about the risks and benefits of the procedure, including alternatives.