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Ocular Myasthenia Mimicking Third Nerve Palsy | 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 thir... | Ocular Myasthenia; Third Nerve Palsy; Ptosis; Diplopia; Cogan's Lid Twitch | Neuro-ophthalmology Virtual Education Library: NOVEL http://NOVEL.utah.edu |