External ophthalmomyiasis by larvae of Oestrus ovis (sheep nasal botfly): Second case report from Sri Lanka

Abstract

Introduction: External ophthalmomyiasis is the invasion of superficial tissues of the eye by fly larvae of the order Diptera. Human ophthalmomyiasis due to Oestrus ovis has been reported worldwide, typically in farmers and shepherds, especially in sheep and goat rearing countries of the Mediterranean basin. It is rare in Sri Lanka, and this is the second case that is being reported. In 2004, the first case was identified in a paddy farmer residing in Puttalam.