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Colonization of hydrophilic contact lenses by yeast

  • Original Paper
  • Published:
Journal of Industrial Microbiology and Biotechnology

Abstract

The growth of six strains of yeast was analyzed in vitro in order to assess their capacity for colonizing (adhesion and invasion) hydrophilic contact lenses. Lenses with different water content were cultured in two culture media for 3, 7, 14, and 21 days. Only strain 93150 of Candida albicans could adhere to and invade the polymers. Specifically, fungal growth was observed in cultures with Sabouraud’s broth. The degree of yeast colonization of contact lenses was significantly related to the species, the strain, and the culture medium in which the yeast and lenses were cultured. The results here obtained were compared with those reported for the filamentous fungus Aspergillus niger 2700. For both microorganisms, the strain and the medium in which the lenses and microorganism were cultured influenced the colonization, but the percentage of colonized lenses, the degree of colonization, and the density and size of the internalized colonies were always noticeably lower for C. albicans 93150. Colonization by A. niger 2700 was also related to the type of material of the lenses and the incubation period. For both microorganisms, when the strain is right and the growth and development are correct, colonization of hydrophilic contact lenses occurs.

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Acknowledgements

I am grateful to Allegan, Bausch & Lomb, Ciba-Vision, and Johnson & Johnson Laboratories for providing the lenses, to J. Ventura (Universitat Autònoma de Barcelona) for his useful comments on an earlier draft of the manuscript, and to the Servei de Llengues i Terminologia (Universitat Politècnica de Catalunya) for improving the English.

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Authors and Affiliations

  1. Departament d’Òptica i Optometria, Universitat Politècnica de Catalunya, Violinista Vellsolà, 37, 08222, Terrassa, Barcelona, Spain

    M. Soledad Marqués-Calvo

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  1. M. Soledad Marqués-Calvo
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Correspondence to M. Soledad Marqués-Calvo.

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Marqués-Calvo, M.S. Colonization of hydrophilic contact lenses by yeast. J IND MICROBIOL BIOTECHNOL 31, 255–260 (2004). https://doi.org/10.1007/s10295-004-0141-x

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