A case of acquired primary position upbeat nystagmus in a 3-year-old girl following Haemophilus infleunzae meningitis is presented. Her upbeat nystagmus ceased with eye closure and decreased with downward gaze. In addition, she had defective upward pursuit, supporting the concept that upbeat nystagmus may be secondary to a defect in vertical pursuit.
|Original language||English (US)|
|Number of pages||2|
|Journal||Annals of Ophthalmology|
|State||Published - 1981|
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