Case report

A 61-year-old woman was referred to the Centro Oftalmológico Virgilio Galvis (Floridablanca, Colombia), because of dry eye symptoms. She has always lived in Colombia. The patient had a diagnosis of primary open-angle glaucoma in both eyes, treated with latanoprost 0.005%. Her medical, surgical and family histories were unremarkable. Her best-corrected visual acuity was 0.1 LogMAR (Snellen 20/25) with refraction −2.00 −2.00×110° in the right eye and 0.1 LogMAR (Snellen 20/25) with refraction −1.75 −2.00×80° in the left eye. Goldman tonometry was 16 mm Hg for both eyes. During a slit lamp examination we observed multiple punctate subepithelial corneal lesions in the left eye (figure 1A,B). They were six in total. Two lesions were located superior and inferior in the peripupillary area, one in the nasal midperiphery and three in the periphery (nasal, superior and inferior) of the cornea. The lesions had a white centre surrounded by a halo, less intense in colour, and around three to four times larger than the central dot. The sizes of the central whiter dots were between approximately 0.1 and 0.2 mm and the diameters of the surrounding paler halo areas varied between approximately 0.4 and 0.6 mm. the lesions did not stain with fluorescein (figure 1C). Our patient had no symptoms related to those lesions. Fundus examination showed a cup–disc ratio of 0.5 with normal macula and peripheral retina in both …