Journal of Clinical and Experimental Investigations

Abstract

We present an evaluation of a bilateral exotropia case following a bilateral pterijium surgery that was treated by medial rectus muscle advancement and right muscle transposition in a 52-year-old women. At the examination performed after pterygium surgery with autograft, adduction in the right eye was lost and in the left eye was restricted. Diplopia was revealed in the primary up-down direction of gaze position. Orbital and magnetic resonance imaging was normal. Bilateral medial rectus advancement was planned but because of right medial rectus muscle was not found during the operation, right muscle transposition and left medial rectus muscle advancement operations were performed. The presence of an incomitant exotropia with diplopia immediately after pterygium surgery should alert us to the possibility of having injured the medial rectus during the surgery and the surgery of pterygium should not be left in unexperienced hands