A 56-year-old man with diabetes presented with acute diplopia and signs of bilateral complete abduction deficits. Diffuse areflexia was his only other sign at presentation. Within a few days, he developed complete ophthalmoplegia and ataxia, consistent with a clinical diagnosis of Miller-Fisher syndrome, and repeated history revealed a possible gastroenteritis 3 weeks prior. This case illustrates an "ophthalmoplegia without ataxia" variant of this classic autoimmune condition, which should be considered in patients presenting with bilateral VI nerve palsies.
Keywords: Miller-Fisher syndrome; areflexia; diplopia; ophthalmoplegia; sixth nerve palsy.
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