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Observation of biofilm in storage cases for rigid gas-permeable contact lens Akemi Harigaya 1 , Masayuki Kudo 1 , Satoki Ueno 1 , Hiroyuki Yamamoto 2 , Sigemi Terakubo 2 , Jingoro Shimada 2 , Chizuko Sasaki 3 , Tomohide Yonaha 3 1Dept of Ophthalmol, St. Marianna Univ Sch of Med 2Dept of Microbiol, St. Marianna Univ Sch of Med 3Center for Electron Microscope, St. Marianna Univ Sch of Med pp.485-488
Published Date 2001/4/15
DOI https://doi.org/10.11477/mf.1410907245
  • Abstract
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We observed the biofilm in 35 storage cases of rigid gas-permeable contact lenses. The storage cases were collected from follow-up patients when fouling was visible in the cases. Cultivation of solution in the storage cases showed microorganisms in 32 samples (91%), 70% of which were gram-negative rod-shaped bacteria. Numerous bacteria and yeast-like fungi were present in the strata of thick biofilm in the storage cases when observed by electron mictroscopy. The findings show the risk of infection through contamination in storage cases of rigid gas-permeable contact lens that are claimed not to need disinfectants.


Copyright © 2001, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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