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Organophosphate retinopathy.

Hang Pham1, Michelle D Lingao2, Anuradha Ganesh3

  • 1Sidney Kimmel Medical College, Thomas Jefferson University, Philippines.

Oman Journal of Ophthalmology
|March 26, 2016
PubMed
Summary
This summary is machine-generated.

Organophosphate exposure, like from dimethoate, can cause severe vision loss and retinal degeneration. This case highlights geographic macular atrophy and pigmentary clumping as potential long-term ocular sequelae.

Keywords:
Organophosphatepesticideretinopathy

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Area of Science:

  • Ophthalmology
  • Toxicology
  • Neuroscience

Background:

  • Organophosphates are widely used pesticides.
  • Ocular complications from organophosphates are rare but serious.
  • Retinal degeneration is an underreported sequela of organophosphate exposure.

Observation:

  • A 76-year-old male experienced progressive vision loss since his twenties.
  • The patient had a history of acute-on-chronic exposure to dimethoate, an organophosphate insecticide.
  • Clinical examination revealed bilateral geographic macular atrophy and midperipheral pigmentary clumping.

Findings:

  • Diagnostic imaging, including optical coherence tomography and fundus autofluorescence, characterized the retinal changes.
  • The findings suggest a link between chronic dimethoate exposure and progressive retinal degeneration.
  • Specific patterns of macular atrophy and pigmentary changes were documented.

Implications:

  • This case underscores the potential for organophosphates to cause irreversible retinal damage.
  • Ophthalmologists should consider organophosphate toxicity in patients with unexplained retinal degeneration.
  • Further research is needed to fully understand the mechanisms and long-term effects of organophosphates on retinal health.