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Examination of Staphylococcus aureus on the ocular surface of patients with catarrhal ulcers
Mayumi Ueta1, Chie Sotozono, Junko Takahashi
1Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kamigyoku, Koto 602-0841, Japan. mueta@koto.kpu-m.ac.jp
Purpose:
The purpose of this study was to investigate the role of Staphylococcus aureus in the onset of ocular catarrhal ulcers.
Methods:
We examined the colonization by S. aureus of the ocular surface (conjunctival sac, upper and lower lid margins) of 3 patients with catarrhal ulcers and analyzed the S. aureus isolates by pulsed-field gel electrophoresis.
Results:
S. aureus organisms were found on the lid margin of all eyes affected by catarrhal ulcers. The contralateral eye without ulcers harbored S. aureus exhibiting a pulsed-field gel electrophoresis pattern identical to that of the affected eye.
Conclusions:
Although S. aureus on the lid margin plays an important role in the onset of catarrhal ulcers, its presence is one among several risk factors.
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