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Related Experiment Videos

Cyclodeviation in skew deviation

S L Galetta1, G T Liu, E C Raps

  • 1Department of Neurology, Hospital of the University of Pennsylvania, Scheie Eye Institute, Philadelphia 19104.

American Journal of Ophthalmology
|October 15, 1994
PubMed
Summary
This summary is machine-generated.

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Skew deviation, a condition affecting eye alignment, frequently involves cyclodeviation, or rotational eye movement. This suggests brainstem pathway involvement, not just trochlear nerve issues.

Area of Science:

  • Neuroscience
  • Ophthalmology
  • Vestibular System

Background:

  • Skew deviation is an eye misalignment often associated with brainstem lesions.
  • The role of cyclodeviation, a rotational eye movement, in skew deviation requires further clarification.

Observation:

  • Four patients with dorsolateral pontomedullary lesions and skew deviation were studied.
  • Three patients exhibited excyclodeviation in the hypotropic eye compared to the fellow eye.

Findings:

  • Cyclodeviation appears to be a common feature accompanying skew deviation.
  • This finding suggests involvement of the utricular, semicircular canal, and cerebelloocular pathways.

Implications:

  • The presence of cyclodeviation does not rule out skew deviation or brainstem lesions.

Related Experiment Videos

  • Understanding the link between cyclodeviation and skew deviation aids in diagnosing brainstem abnormalities.