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Related Experiment Videos

Influence of vasospasm on visual function.

P Gasser1, J Flammer

  • 1University Eye Clinic, Bern, Switzerland.

Documenta Ophthalmologica. Advances in Ophthalmology
|May 1, 1987
PubMed
Summary
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A vasospastic syndrome was identified in patients with unexplained visual field loss using a cooling test. This syndrome, responsive to calcium entry blockers, impacts vision.

Area of Science:

  • Ophthalmology
  • Vascular Physiology

Background:

  • Etiologically unexplained visual field loss can significantly impact patient quality of life.
  • Understanding the underlying pathophysiology of visual field defects is crucial for effective treatment.

Purpose of the Study:

  • To investigate the potential role of vasospastic syndrome in unexplained visual field loss.
  • To evaluate the diagnostic utility of a capillaroscopic local cooling test.
  • To assess the therapeutic efficacy of calcium entry blockers in affected patients.

Main Methods:

  • Utilized a capillaroscopic local cooling test on fingers to diagnose vasospastic syndrome.
  • Administered a cold water test to assess visual field defect changes.
  • Monitored visual field defect alterations following treatment with calcium entry blockers.

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Main Results:

  • Identified vasospastic syndrome in a subset of patients with unexplained visual field loss.
  • Observed exacerbation of visual field defects after the cold water test.
  • Demonstrated a decrease in visual field defects after calcium entry blocker therapy.

Conclusions:

  • Vasospastic syndrome is a potential underlying cause of unexplained visual field loss.
  • The capillaroscopic local cooling test is a valuable diagnostic tool.
  • Calcium entry blockers show promise in managing visual field defects associated with vasospasm.