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Related Experiment Videos

Clonazepam associated retinopathy.

Sta Gatzonis1, P Karadimas, Sty Gatzonis

  • 1Department of Ophthalmology, Hippocration Hospital, Athens, Greece.

European Journal of Ophthalmology
|January 1, 2004
PubMed
Summary

Long-term use of clonazepam, an antiepileptic drug, may cause toxic retinopathy. This condition involves subtle visual disturbances and retinal pigment epithelium changes.

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Area of Science:

  • Ophthalmology
  • Neurology
  • Pharmacology

Background:

  • Clonazepam is a commonly prescribed antiepileptic drug.
  • Long-term use of certain medications can lead to ocular toxicity.
  • Retinal toxicity is a potential adverse effect of some drugs.

Observation:

  • A case report details a 36-year-old woman with a history of long-term clonazepam use.
  • The patient experienced subtle visual disturbances.
  • Ophthalmic examination revealed bilateral retinal pigment epithelium depigmentation.

Findings:

  • Funduscopy showed mild depigmentation of the retinal pigment epithelium in the posterior pole.
  • Fluorescein angiography demonstrated corresponding transmission hyperfluorescence.
  • No inherited retinal disease or other causative agents for retinal toxicity were identified.

Implications:

  • This case suggests a potential association between long-term clonazepam intake and toxic retinopathy.
  • Ophthalmologists should consider drug-induced retinopathy in patients on long-term clonazepam therapy.
  • Further research is warranted to elucidate the mechanism and prevalence of clonazepam-associated retinopathy.

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