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[Cobra bite: ophthalmic manifestations]

R R Berger1, S Brook

  • 1Eye Division, Boksburg-Benoni Hospital, Boksburg, South Africa.

Harefuah
|November 1, 1993
PubMed
Summary
This summary is machine-generated.

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Cobra venom causes respiratory paralysis and can severely damage vision, leading to blindness. This case highlights long-term visual impairment from a childhood cobra bite.

Area of Science:

  • Toxicology
  • Neuroscience
  • Ophthalmology

Background:

  • Cobra venom contains toxic enzymes and proteins.
  • Venom affects respiratory centers and neuromuscular junctions, causing paralysis.
  • It can also damage retinal cells, leading to optic neuritis and blindness.

Observation:

  • African cobras can deliver venom via biting or spitting.
  • A case study of an 18-year-old woman with visual impairment is presented.
  • The visual impairment resulted from a childhood cobra bite.

Findings:

  • Cobra venom's neurotoxic effects can lead to respiratory failure.
  • Ocular toxicity from cobra venom can cause severe, permanent vision loss.
  • Delayed visual impairment following envenomation is a significant concern.

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Implications:

  • Understanding cobra venom's dual action is crucial for treatment.
  • Early recognition and management of venomous snakebites are vital.
  • This case underscores the long-term consequences of snakebite injuries on vision.