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Acute conjunctivitis associated with biofilm formation on a punctal plug
1Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Japanese Journal of Ophthalmology
|October 18, 2000
Summary
Punctal plugs, used for dry eye, can lead to bacterial biofilm formation and acute conjunctivitis. Replacing the plug and treating the infection resolved the condition in this case.
Area of Science:
- Ophthalmology
- Microbiology
Background:
- Punctal plugs are utilized for managing tear-deficient dry eye.
- This study investigates a case of acute conjunctivitis linked to bacterial biofilm on a punctal plug.
Observation:
- A 63-year-old woman with dry eye developed acute conjunctivitis 5.5 months after punctal plug insertion.
- Microbiological analysis identified Staphylococcus haemolyticus and Candida tropicalis on the plug.
- Scanning electron microscopy confirmed extensive bacterial colonization within an extracellular matrix.
Findings:
- Punctal plug use may increase the risk of bacterial biofilm development.
- The patient's conjunctivitis resolved within one month after plug replacement and antimicrobial treatment.
Implications:
- Consider punctal plug replacement or material removal if biofilm formation is suspected.
- This highlights a potential complication of punctal plug therapy requiring clinical attention.