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Predisposing factors to development of microbial keratitis

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

  • some predisposing factors for microbial keratitis are (1) (2):
    • ocular trauma (commonest)
    • contact lens use
      • mostly gram negative organisms
      • patients affected by contact lens-related infectious keratitis are usually between 25 and 40 years old, although it may occur at any age in a contact lens user
    • ocular surface disease
    • herpetic eye disease
    • systemic associations


  1. Keay L et al. Microbial keratitis predisposing factors and morbidity.KeayOphthalmology. 2006 Jan;113(1):109-16
  2. Infectious keratitis: an update on epidemiology, causative microorganisms, risk factors, and antimicrobial resistance - PMC ( (

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