Prolonged orbicularis oculi activity: a major factor in apraxia of lid opening.

@article{Tozlovanu2001ProlongedOO,
  title={Prolonged orbicularis oculi activity: a major factor in apraxia of lid opening.},
  author={Viorika Tozlovanu and Robert Forget and Andreea Iancu and D. R. Boghen},
  journal={Neurology},
  year={2001},
  volume={57 6},
  pages={1013-8}
}
BACKGROUND Apraxia of lid opening (ALO) is a nonparalytic inability to open the eyes at will in the absence of visible contraction of the orbicularis oculi (OOc) muscle. OBJECTIVE To test the hypothesis that sustained activity of the OOc is a major factor in the difficulty in opening the eyes in this condition. METHODS Lid movement detected in an electromagnetic field and electromyogram activity of the septal and pretarsal portions of the OOc were recorded in 12 healthy control subjects and… CONTINUE READING

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