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[Ocular refraction in Zaire]

D Kaimbo Wa Kaimbo1, L Missotten

  • 1Service d'Ophtalmologie, Cliniques Universitaires de Kinshasa, Zaïre.

Bulletin De La Societe Belge D'Ophtalmologie
|January 1, 1996
PubMed
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Refractive error frequencies in Zairian and Caucasian patients showed similarities, with myopia being more common and hypermetropic astigmatism less common in Zairian individuals. Hypermetropia increased with age across all groups.

Area of Science:

  • Ophthalmology
  • Optometry
  • Public Health

Background:

  • Refractive errors, including myopia and astigmatism, are common visual impairments.
  • Understanding the prevalence of refractive errors across different ethnic groups is crucial for targeted eye care strategies.

Purpose of the Study:

  • To determine the frequencies of refractive errors in Zairian Black patients.
  • To investigate the influence of race on refractive error patterns.

Main Methods:

  • Retrospective analysis of ophthalmology patient records from 1963 to 1972.
  • Refraction measurements using objective (skiascopy) and subjective methods.
  • Comparison of refractive error data between Zairian Black, non-Zairian Black, and Caucasian patients.

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Main Results:

  • Ametropia was found in approximately 16% of patients (4326 individuals).
  • Zairian patients showed 56% spherical refractive errors (33% myopia, 22% hypermetropia) and 44% astigmatism.
  • Caucasian patients had 46% spherical errors (19% myopia, 25% hypermetropia) and 54% astigmatism.
  • Hypermetropia increased with age, with a slightly earlier onset in Zairian patients.

Conclusions:

  • No significant differences in refractive error data were observed between Zairian and Caucasian patients.
  • Myopia appeared more frequent, and hypermetropic astigmatism less frequent, in Zairian patients compared to Caucasians.