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Ophthalmic Epidemiol. 2012 Apr;19(2):111-5. doi: 10.3109/09286586.2011.645990. Epub 2012 Feb 24.

Acanthamoeba keratitis in South India: a longitudinal analysis of epidemics.

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  • 1Aravind Eye Institute, Madurai, India.

Abstract

PURPOSE:

In light of the increased incidence of contact lens associated Acanthamoeba keratitis in recent years, this study analyzed longitudinal trends of its incidence among predominantly non-contact lens wearers in a high-volume referral center in South India.

METHODS:

A retrospective analysis of microbiology laboratory records at the Aravind Eye Hospital from 1988-2009 was performed. The Maximum Excess Events Test (MEET) was used to identify epidemics of Acanthamoeba keratitis.

RESULTS:

There were a total of 38,529 unique cases of infectious keratitis evaluated over this time period, of which 372 were culture-positive for Acanthamoeba. Only three cases (0.9%) of Acanthamoeba keratitis occurred among contact lens wearers. MEET identified unique Acanthamoeba keratitis epidemics in 1993 and 2002.

CONCLUSION:

Discrete epidemics of Acanthamoeba keratitis occurred among a rural, non-contact lens wearing, population in South India in 1993 and 2002.

PMID:
22364672
[PubMed - indexed for MEDLINE]
PMCID:
PMC3830554
Free PMC Article

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