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Related Experiment Videos

Irreversible blindness after amyl nitrite inhalation.

H C Fledelius1

  • 1Rigshospitalet, University Eye Dept., Copenhagen, Denmark.

Acta Ophthalmologica Scandinavica
|January 14, 2000
PubMed
Summary
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A 15-year-old male experienced vision loss after inhaling amyl nitrite. This case highlights a potential link between amyl nitrite abuse and acute optic nerve disease, possibly triggered by a prior infection.

Area of Science:

  • Ophthalmology
  • Toxicology
  • Neurology

Background:

  • Amyl nitrite is a vasodilator historically used for angina pectoris.
  • Recreational amyl nitrite inhalation is associated with various health risks.
  • Optic nerve diseases can lead to significant visual impairment.

Observation:

  • A 15-year-old male presented with acute, bilateral optic nerve disease.
  • Visual loss occurred sequentially over four days, affecting all altitudinal visual hemifields.
  • The patient developed atrophic optic discs and severe vision impairment (2/60 in the better eye).

Findings:

  • No specific cause was identified through CT, MRI, or extensive laboratory tests.
  • The pattern of visual loss is unprecedented in the history of amyl nitrite use.

Related Experiment Videos

  • A parainfectious mechanism, possibly linked to a preceding influenza-like illness, is proposed.

    • Implications:

    • This case suggests a potential, previously undescribed neurotoxic effect of amyl nitrite.
    • It underscores the importance of considering non-traditional etiologies in toxic optic neuropathies.
    • Further research is needed to elucidate the pathogenesis of amyl nitrite-induced optic nerve damage.