Etiology of corneal opacification in central Tanzania

Peter A. Rapoza, Sheila K. West, Sidney J. Katala, Beatriz Munoz, Hugh R. Taylor

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


The frequency and causes of visually significant corneal opacification in central Tanzania was assessed by a population-based survey. The overall prevalence of bilateral corneal opacification was 1.16% (95% CI 0.31-1.44) and unilateral corneal opacification was 2.07% (95% CI 1.55-2.73). Bilateral corneal opacification was most frequently associated with trachoma, keratoconjunctivitis, vitamin A deficiency and measles. Unilateral corneal opacification had similar causes with the addition of cases caused by trauma. Corneal scarring is a frequent occurence in this region. The majority of cases of corneal opacification are secondary to potentially preventable or treatable causes.

Original languageEnglish (US)
Pages (from-to)47-51
Number of pages5
JournalInternational Ophthalmology
Issue number1
StatePublished - Feb 1 1993


  • blindness
  • corneal opacification
  • keratoconjunctivitis
  • measles
  • trachoma
  • vitamin A deficiency

ASJC Scopus subject areas

  • Ophthalmology


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