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The ITS2 Database
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Queensland Microbial Keratitis Database: 2005-2015.

Matthew Green1,2, Nicole Carnt2, Andrew Apel3

  • 1Ophthalmology department, Gold Coast University Hospital, Southport, Queensland, Australia doctormatthewgreen@gmail.com.

The British Journal of Ophthalmology
|January 7, 2019
PubMed
Summary
This summary is machine-generated.

Microbial keratitis incidence in Queensland is 0.66 per 10,000 people. Antibiotic susceptibility remains high, but yeast infections are increasing while protozoal keratitis is decreasing.

Keywords:
corneainfection

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Area of Science:

  • Ophthalmology
  • Microbiology
  • Infectious Diseases

Background:

  • Microbial keratitis is a significant cause of vision loss.
  • Understanding regional incidence and causative organisms is crucial for public health.
  • Trends in microbial keratitis inform treatment and prevention strategies.

Purpose of the Study:

  • To estimate the incidence of culture-positive microbial keratitis in Queensland, Australia.
  • To analyze trends in causative organisms and their antibiotic sensitivities.
  • To specifically investigate low-incidence pathogens like fungi and Acanthamoeba.

Main Methods:

  • A retrospective multicentre case series analyzed 3182 positive corneal scrapes from 2005-2015.
  • Data included patient demographics, culture results, and susceptibility testing.
  • Linear regression was used to monitor trends in incidence and organism types.

Main Results:

  • The estimated incidence of microbial keratitis was 0.66 cases per 10,000 people.
  • Pseudomonas aeruginosa was the most common isolate (17.7%), but Gram-positive bacteria predominated overall (66.6%).
  • Fungal keratitis incidence increased (yeast: p=0.045, moulds: spike 2010-2012), while Acanthamoeba incidence decreased (p=0.055).

Conclusions:

  • Microbial keratitis incidence in Queensland is estimated at 0.66 per 10,000 population.
  • High and stable antibiotic susceptibility rates were observed for bacterial isolates.
  • Increasing yeast and decreasing protozoal keratitis incidence highlight evolving trends in causative pathogens.