Recurrent ptosis in an adult due to isolated paresis of the levator palpebrae superioris and Müller’s muscle of unknown aetiology

Abstract

We report on the case of a middle-aged woman who suffers from recurrent right-sided ptosis. The ptosis is always complete with preserved ocular motility. Full recovery is the rule. The involvement of both the Müller’s muscle and levator palpebrae superioris is demonstrated clinically, pharmacologically, and by high-resolution magnetic resonance imaging. The results presented point towards a local pathology of the lid surface anatomy; the etiology, however, remains unknown.