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Related Experiment Videos

Foggy visual field defect.

Rod Foroozan1, Lawrence M Buono

  • 1Neuro-Ophthalmology Service, Wills Eye Hospital, Thomas Jefferson University, Philadelphia, Pennsylvania 19107, USA.

Survey of Ophthalmology
|July 10, 2003
PubMed
Summary
This summary is machine-generated.

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Topiramate, an antiepileptic drug, can cause visual field defects like homonymous hemianopia in migraine patients. Symptoms may improve after discontinuing the medication.

Area of Science:

  • Ophthalmology
  • Neurology

Background:

  • Topiramate is a widely prescribed antiepileptic drug also used for migraine prophylaxis.
  • Visual field defects are a known, though uncommon, side effect of topiramate therapy.

Observation:

  • A 32-year-old female experiencing migraines presented with a new-onset right incongruous homonymous hemianopia.
  • The patient had recently started topiramate for migraine management.

Findings:

  • The homonymous hemianopia, a specific type of visual field loss, was directly associated with topiramate use.
  • Discontinuation of topiramate led to a partial resolution of the visual field defect, suggesting a drug-induced etiology.

Implications:

  • This case highlights the importance of considering topiramate as a potential cause of acute visual field defects in patients with migraine.

Related Experiment Videos

  • Ophthalmologists and neurologists should be aware of this adverse effect for accurate diagnosis and management.
  • Further investigation into the mechanism of topiramate-induced visual field defects is warranted.