Disposable contact lenses and bacterial adhesion. In vitro comparison between ionic/high-water-content and non-ionic/low-water-content lenses

Carla Renata Arciola, Maria Cristina Maltarello, Elisabetta Cenni, Arturo Pizzoferrato

Research output: Contribution to journalArticlepeer-review

Abstract

An in vitro quantitative study of the adhesion of a Staphylococcus aureus strain to two types of disposable contact lenses has been carried out. The first type was an ionic/high-water-content (I-HWC) lens (42% Etafilcon A, 58% water) and the second was a non-ionic/low-water-content (NI-LWC) lens (61.4% poly(2-hydroxyethyl methacrylate), 38.6% water). Adhesion to the two lens types was evaluated both in basic conditions and after treatment with lysozyme. The results showed that I-HWC lenses are more prone to Staphylococcus aureus adhesion than NI-LWC lenses, both untreated (+15.4%) and treated with lysozyme (+20.5%). Lysozyme increased bacterial adhesion by 30.5% on the lenses with lower water content, and by 36.3% on those with higher water content.

Original languageEnglish
Pages (from-to)685-690
Number of pages6
JournalBiomaterials
Volume16
Issue number9
DOIs
Publication statusPublished - 1995

Keywords

  • bacterial adhesion
  • Disposable contact lenses
  • Staphylococcus aureus

ASJC Scopus subject areas

  • Biophysics
  • Bioengineering
  • Mechanics of Materials
  • Biomaterials
  • Ceramics and Composites
  • Biotechnology
  • Biomedical Engineering

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