Causes Twitching Rapid Eye Movement Sleep

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Definition

Nystagmus refers to rapid involuntary movements of the eyes that may be:

  • Side to side (horizontal nystagmus)
  • Up and down (vertical nystagmus)
  • Rotary

Depending on the cause, these movements may be in both eyes or in just one eye. The term "dancing eyes" has been used in regional dialect to describe nystagmus.


Alternative Names

Back and forth eye movements; Involuntary eye movements; Rapid eye movements from side to side; Uncontrolled eye movements; Eye movements - uncontrollable


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