Collection of materials relating to neuro-ophthalmology as part of the Neuro-Ophthalmology Virtual Education Library.
NOVEL: https://novel.utah.edu/
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Cogan Lid Twitch | Hari Anandarajah, BA | A 50-year-old woman presented with ptosis of her left eyelid for 6 months. Several exam findings including variable and fatigable ptosis, and Cogan lid twitch, raised suspicion for Myasthenia Gravis. Acetylcholine receptor binding, blocking, and modulating antibodies were negative, and single fiber ... | Lid Twitch; Myasthenia Gravis |
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Cogan's Lid Twitch Sign | Raed Behbehani, MD | Cogan's lid twitch sign is a twitch sign of he upper lid upon looking straight from a sustained downgaze position. It is associated with Ocular Myasthenia Gavis. | Myasthenia; Ptosis; Lid Twitch |
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