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Keywords:

  • chronic dacryocystitis;
  • ciprofloxacin;
  • infectious keratitis;
  • Streptococcus pneumoniae

Abstract

Aim: To study the clinical features of pneumococcal keratitis and response to ciprofloxacin therapy.

Methods: A retrospective analysis was undertaken of 58 patients with culture-proven pneumococcal keratitis seen over a period of 2 years.

Results: Pneumococcal keratitis accounted for 33.3% of bacterial keratitis. Most cases presented with non-severe keratitis (77.5%). Co-existing sac pathology was more frequent in pneumococcal ulcers as compared to non-pneumococcal bacterial ulcers (50%vs 9%, P < 0.001). Characteristic clinical features enabling an accurate clinical diagnosis were found in 27.5% and lanceolate diplococci on Gram's stain were identified in 76% of cases. In vitro testing showed a high susceptibility to cephazolin and ciprofloxacin. All patients received ciprofloxacin as first-line therapy. Eighty per cent responded well with complete healing of the ulcer. A second drug was required in 8.5%.

Conclusion: Ciprofloxacin therapy can be effective in the treatment of pneumococcal keratitis.