A frequent surfer and lifeguard had a history of having undergone surgery for a left nasal pterygium in 1989 and in 1994. The pterygium had recurred again and he had developed diplopia in left lateral gaze. A left nasal pterygium extended onto his cornea approximately 2 mm, and a 1-mm left temporal pterygium was noted. During his first surgical procedure, ß-radiation therapy had been used with a dose of 20 Gy (to convert to rads, multiply by 100) applied to the excision site. After his second procedure, during which excision with a free conjunctival graft was performed, the graft was noted to be unhealthy at 1 week; the conjuctival graft subsequently sloughed. The pterygium was reexcised, and a lamellar corneal button was used to repair the defect.