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Colletotrichum keratitis.

Viviana Fernandez1, Dilek Dursun, Darlene Miller

  • 1Bascom Palmer Eye Institute, Miami, Florida 33136, USA.

American Journal of Ophthalmology
|September 5, 2002
PubMed
Summary
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Colletotrichum keratitis is an uncommon fungal eye infection. Despite in vitro resistance to natamycin, patients often respond well to this treatment, though amphotericin B may be needed.

Area of Science:

  • Ophthalmology
  • Mycology
  • Infectious Diseases

Background:

  • Fungal keratitis is a significant cause of visual impairment.
  • Colletotrichum species are an infrequent cause of fungal keratitis.

Purpose of the Study:

  • To evaluate Colletotrichum keratitis.
  • To identify risk factors and clinical course of Colletotrichum keratitis.

Main Methods:

  • Retrospective review of fungal keratitis cases (January 1980 - February 2001).
  • Identification of 10 eyes with Colletotrichum keratitis via positive cultures.
  • Analysis of antifungal susceptibility and treatment outcomes.

Main Results:

  • Colletotrichum identified in 10/360 culture-proven fungal keratitis cases.

Related Experiment Videos

  • All isolates sensitive to amphotericin B; variable sensitivity to natamycin and fluconazole.
  • Initial treatment with natamycin 5% in 8 cases, with 2 patients switching to amphotericin B 0.15%.

    • Conclusions:

    • Colletotrichum is an infrequent cause of fungal keratitis with typical risk factors.
    • In vitro resistance to natamycin and fluconazole observed, but clinical response to natamycin was favorable.
    • Amphotericin B remains a reliable treatment option for Colletotrichum keratitis.