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Acanthamoeba dendriform keratitis.

W C Hsieh1, D I Dornic

  • 1VEF Eye Center of Oklahoma, Mercy Hospital Doctor's Tower, Oklahoma City 73120.

Journal of the American Optometric Association
|January 1, 1989
PubMed
Summary
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Acanthamoeba keratitis, a serious eye infection, can occur from improper contact lens care using tap water. Early diagnosis is crucial for effective treatment and preventing vision loss.

Area of Science:

  • Ophthalmology
  • Microbiology
  • Infectious Diseases

Background:

  • Soft contact lens wear is a common practice for vision correction.
  • Improper disinfection and lens care can lead to microbial keratitis.
  • Acanthamoeba keratitis is a severe infection that can cause significant vision impairment.

Observation:

  • A patient presented with persistent redness, blurry vision, and photophobia in the right eye.
  • Atypical corneal epithelial dendriform patterns were observed.
  • The patient reported using both tap water and distilled water for contact lens care.

Findings:

  • The initial diagnosis was presumed herpes simplex keratitis and corneal erosion.
  • Acanthamoeba was isolated from the patient's contact lens case, confirming Acanthamoeba dendriform keratitis.

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  • The organism identified was Acanthamoeba.

    • Implications:

    • This case highlights the risk of Acanthamoeba keratitis associated with non-sterile water use in contact lens hygiene.
    • Recognizing early, atypical dendriform patterns is vital for prompt diagnosis.
    • Proper contact lens care education is essential to prevent sight-threatening infections.