Nystagmus meaning

nĭ-stăgməs
Involuntary, rapid movement of the eyeball, usually from side to side.
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Nystagmus is a rapid and involuntary eye movement that can result in sight problems.

An example of nystagmus is when the eyeball suddenly moves from side to side by itself.

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A rapid, involuntary, oscillatory motion of the eyeball.
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A rapid, involuntary, oscillatory motion of the eyeball.
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Rapid involuntary eye movement, usually lateral.

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Origin of nystagmus

  • New Latin from Greek nustagmos drowsiness

    From American Heritage Dictionary of the English Language, 5th Edition

  • First attested in 1798. From New Latin nystagmus, from Ancient Greek νυσταγμός (nustagmos, “nodding, drowsiness"), from νυστάζω (nustazō, “nod, be sleepy").

    From Wiktionary