Clinical Professor, Department of Ophthalmology, Weill Cornell Medicine, New York City, New York
Subject
Ocular Myasthenia; Third Nerve Palsy; Ptosis; Diplopia; Cogan's Lid Twitch
Description
66 year old man with ptosis OS and diplopia, slow saccades and pattern of a third nerve palsy. He shows a Cogan's lid twitch. Differential diagnosis is cavernous sinus lesion vs myasthenia. The Sleep test shows his eye open and he is diagnosed with myasthenia. His ocular myasthenia mimicked a third nerve palsy.
