Q:

Involuntary oscillatory eye movements (nystagmus)

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Involuntary oscillatory eye movements (nystagmus).


  1. Do not occur in healthy people.
  2. May result from cochlear disease.
  3. Occur in cerebellar disease.
  4. Occur when cold fluid is run into one external ear canal.
  5. Do not affect acuity of vision.

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A. False They occur when a normal person stops rotating.

B. False Disease of the semicircular canals may cause nystagmus.

C. True Nystagmus is an ataxia of eye fixation.

D. True Due to cooling of fluid in the adjacent semicircular canal.

E. False The rapid eye movements tend to make vision blurred.

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