A 28 year-old woman presented to the Ophthalmology Clinic at the Armed Forces Hospital, Muscat, Oman, with severe pain, redness, photophobia and decrease in visual acuity of her left eye of 1 day’s duration. She gave a history of a pterygium excision with intraoperative topical mitomycin-C application (0.1 mg/ml for 5 minutes ) in the same eye two years before. There was no other systemic or local disease. She underwent a detailed ophthalmic and systemic evaluation and laboratory examination. The best corrected visual acuity in her right eye was -0.25sph/-0.50cyl /90 = 6/6 and in the left eye -0.25sph/-1cyl 140 = 6/12. Her left eye showed conjunctival and ciliary congestion. There was a linear ulcer on the cornea about 2 mm from the nasal limbus with a scar immediately temporal to it. There was no surrounding infiltration, but the nasal 4–5mm of cornea was thin between 6 and 11 o’clock [Figures 1a and 1b] The adjacent sclera was normal. The intraocular pressure and fundus of both the eyes was normal. Scrapings and swabs from the ulcer base were sent for microbiological evaluation. The left eye was treated with prophylactic antibiotic drops and artificial tears. The ulcer responded to treatment in a period of 4 weeks, leaving a thin nasal cornea with peripheral limbal vascularisation [Figure 2]. Pterygium is an epithelial hyperplasia accompanied by a fibrovascular growth originating at the corneo-conjunctival junction, from where the modified limbic cells migrate and surpass SQU Med J, May 2011, Vol. 11, Iss. 2, pp. 286-287, Epub. 15th May 11 Submitted 27th Jul 10 Revision ReQ. 3rd Oct 10, Revision recd. 13th Oct 10 Accepted 3rd Nov 10 1Department of Ophthalmology, Armed Forces Hospital, Oman; 2Department of Ophthalmology, Al Ahli Eye Research Center, Doha, Qatar. *Corresponding Author email: shenoyvs@omantel.net.om ]ÊÅ<Ÿ^€√jâ]<Ç√e<Ü}`jπ]<ÌÈfiÜœ÷]