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Trends in contact lens-associated corneal ulcers
E J Cohen1, J C Fulton, C J Hoffman
1Cornea Service, Wills Eye Hospital, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
Cornea
|November 1, 1996
Summary
Contact lens-related corneal ulcers decreased significantly, with disposable extended-wear lenses most frequently implicated. Pseudomonas infections declined, while Acanthamoeba remained consistent.
Area of Science:
- Ophthalmology
- Microbiology
Background:
- Corneal ulcers are a serious sight-threatening condition.
- Contact lens wear is a known risk factor for microbial keratitis.
Purpose of the Study:
- To analyze trends in contact lens-related corneal ulcers.
- To identify causative organisms and associated contact lens types.
Main Methods:
- Retrospective chart review of 320 patients with corneal ulcers.
- Data collected from July 1992 to June 1995.
- Analysis of contact lens use, lens type, and microbial organisms.
Main Results:
- 30% of corneal ulcers were associated with contact lens use.
- Disposable extended-wear lenses were most commonly implicated.
- A decrease in Pseudomonas infections and a stable rate of Acanthamoeba infections were observed.
Conclusions:
- There was a significant decrease in contact lens-related corneal ulcers.
- Disposable extended-wear lenses pose a continued risk.
- Surveillance for microbial keratitis in contact lens wearers remains crucial.