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Acanthamoeba keratitis in Pondicherry.

S C Parija1, M R Prakash, V A Rao

  • 1Jawaharlal Institute of Postgraduate Medical Education & Research, Pondicherry.

The Journal of Communicable Diseases
|August 13, 2002
PubMed
Summary

Acanthamoeba keratitis, an eye infection, affected 11 agricultural workers in Pondicherry between 1997-2000. Most cases involved eye injury and resulted in severe vision loss and complications.

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Area of Science:

  • Ophthalmology
  • Infectious Diseases
  • Microbiology

Background:

  • Acanthamoeba keratitis is a severe corneal infection caused by Acanthamoeba species.
  • This infection can lead to significant vision impairment and ocular complications.

Purpose of the Study:

  • To document the incidence and characteristics of Acanthamoeba keratitis cases in Pondicherry.
  • To identify risk factors and clinical outcomes associated with this infection in the region.

Main Methods:

  • Screening of 136 corneal scrapings from suspected cases between 1997 and 2000.
  • Microscopic examination of direct smears for Acanthamoeba identification.

Main Results:

  • Eleven cases (8.1%) of Acanthamoeba keratitis were confirmed.

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  • Affected individuals were agricultural workers, aged 15-57, with no contact lens use.
  • Risk factors included eye injury (4 cases) and application of cow dung post-injury (1 case).
  • Complications included poor vision (all 11 cases), corneal scarring (3), opacity (5), and perforation (2).

    • Conclusions:

    • This study reports the first documented cases of Acanthamoeba keratitis in Pondicherry.
    • Agricultural workers without contact lens use are identified as a risk group.
    • Prompt diagnosis and treatment are crucial to manage complications and prevent vision loss.