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Br J Ophthalmol 1998;82:930-933 doi:10.1136/bjo.82.8.930
  • Original Article
    • Clinical science

Trachoma in the Gambia

  1. P J Dolina,
  2. H Faalb,
  3. G J Johnsona,
  4. J Ajewoleb,
  5. A A Mohameda,
  6. Pak S Leea
  1. aInternational Centre for Eye Health, Institute of Ophthalmology, Bath Street, London EC1V 9EL, bNational Eye Care Programme, Ministry of Health, the Gambia
  1. Dr Paul Dolin, Global Tuberculosis Programme, World Health Organisation, 1211 Geneva 27, Switzerland.
  • Accepted 4 March 1998

Abstract

BACKGROUND As part of the second National Survey of Blindness and Low Vision in the Gambia carried out in 1996, all survey participants were examined for signs of trachoma. The findings were compared with the results of the first survey in 1986, which used the same sampling strategy.

METHODS A multistage stratified cluster random sample, with proportional probability sampling, was obtained. Stratification included settlement size (less than 400 residents, and 400 and more residents). All subjects were examined for trachoma using the simplified WHO grading system.

RESULTS Of the sample of 14 110 people, 13 047 (92.5%) were examined. Active inflammatory trachoma (grade TF or TI) was found in 3.0% of all age groups and 5.9% of children aged 0–9 years old. Trichiasis was found in 3.3% and trachomatous corneal opacities in 0.9% of adults aged 30 and over. The prevalence of blinding trachomatous corneal opacities was 0.02%, compared with 0.10% 10 years previously.

CONCLUSION Compared with a previous national survey undertaken in 1986, prevalence of active trachoma has fallen by 54%. There has been an 80% relative reduction in blinding trachomatous corneal opacities over the 10 year period.

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