Patients who present with nystagmus may have visual loss, a benign peripheral vestibular abnormality, or an important central nervous system disorder. The clinical history, features of nystagmus on examination, and accompanying symptoms and findings often help to localize the lesion. These features also determine the appropriate evaluation and treatment of the underlying disorder. Additionally, if there is oscillopsia or blurred vision, treatment of the nystagmus itself may be warranted. Possible treatments include medication, optical manipulations, and surgery.
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