Table 2

Predisposing factors for microbial keratitis in the elderly

Predisposing factors Number of patients(n=102) Prevalence (%)
Ocular disease3938.2
 corneal oedema7
 corneal scarring6
 previous ulcer, same eye4
 dry eyes4
 corneal degeneration2
Previous ocular surgery, same eye3029.4
 contact lens2
 not identified7
Systemic disease1716.7
 diabetes mellitus14
 rheumatoid arthritis1
 Stevens–Johnson syndrome1
  • Total is greater than 102 because of multiple predisposing factors in some patients.