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Upbeat Nystagmus

Upbeat Nystagmus

Upbeat Nystagmus

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Clinical Features of <strong>Upbeat</strong><br />

<strong>Nystagmus</strong><br />

Present in primary gaze usually increases<br />

on upgaze<br />

Slow phases may have linear-, increasing-,<br />

or decreasing-velocity waveforms<br />

Poorly suppressed by visual fixation of a<br />

distant target

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