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Related Experiment Video

Updated: May 15, 2026

Conjunctival Commensal Isolation and Identification in Mice
07:52

Conjunctival Commensal Isolation and Identification in Mice

Published on: May 1, 2021

Microbial keratitis: could contact lens material affect disease pathogenesis?

David J Evans1, Suzanne M J Fleiszig

  • 1College of Pharmacy, Touro University California, Vallejo, CA 94592, USA. david.evans@tu.edu

Eye & Contact Lens
|December 26, 2012
PubMed
Summary

Microbial keratitis remains a risk with contact lenses, even with advanced materials. Future lens designs must consider bacterial growth and eye defenses to prevent these serious infections.

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Last Updated: May 15, 2026

Conjunctival Commensal Isolation and Identification in Mice
07:52

Conjunctival Commensal Isolation and Identification in Mice

Published on: May 1, 2021

Area of Science:

  • Ophthalmology
  • Microbiology
  • Biomaterials Science

Background:

  • Microbial keratitis is a serious complication of contact lens wear.
  • Silicone hydrogel lenses, despite improved oxygen permeability, have not reduced infection rates.
  • The contact lens itself can promote microbial growth and affect the ocular surface environment.

Purpose of the Study:

  • To investigate the role of contact lens materials in the pathogenesis of microbial keratitis.
  • To understand how current lens materials influence bacterial virulence and host defenses.
  • To identify future directions for designing contact lens materials that prevent microbial keratitis.

Main Methods:

  • Review of current literature on microbial keratitis and contact lens materials.
  • Analysis of the impact of lens materials on bacterial adhesion and biofilm formation.
  • Evaluation of the effects of lens materials on the ocular surface innate immune response.

Main Results:

  • Contact lenses can serve as a surface for microbial colonization.
  • Lens materials can modulate the ocular surface environment, potentially influencing infection risk.
  • Existing data suggest factors beyond oxygen transmission are critical in keratitis development.

Conclusions:

  • Preventing microbial keratitis requires addressing factors beyond oxygen permeability in contact lens materials.
  • Understanding the interplay between lens material properties, bacterial virulence, and host defenses is crucial.
  • Future contact lens material design should focus on inhibiting microbial growth and supporting ocular surface health.