a case of shield ulcer due to vernal keratoconjunctivitis

Corneal shield ulcer is an uncommon but serious complication of vernal keratoconjunctivitis (vkc) that can threaten visual acuity. we present a 12-year-old case with a corneal shield ulcer on the superior part of the cornea in the right eye. we learned from his history that he was treated with topical cyclosporine a (csa) and corneal debridement was performed for the same complaints six months ago. his complaints recurred six months after ceasing topical csa voluntarily. topical anti-allergic and csa treatments were commenced, we also performed corneal debridement. during his follow-ups, the corneal ulcer healed leaving a scar as opacity and neovascularization. this case highlights the role of the anti-inflammatory effect of csa in preventing the recurrence of shield ulcers.