Cogan's Lid Twitch Sign (Right Eye)
0:14
YouTubeRaed Behbehani
Cogan's Lid Twitch Sign (Right Eye)
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. In this patient the right ptotic eyelid twitches after attempted looking up and the sign is positive in the right eye.
106.6K viewsMay 6, 2012
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