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Summary

This study tracked eye diseases in Kenyan adults over six years. It will provide crucial data on the incidence and progression of blindness and visual impairment in sub-Saharan Africa.

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Area of Science:

  • Ophthalmology
  • Public Health
  • Epidemiology

Background:

  • Lack of longitudinal data on eye disease in sub-Saharan Africa.
  • Population-based survey in Kenya (2007/08) to assess blindness and low vision.
  • Established baseline for a six-year prospective cohort study.

Purpose of the Study:

  • To estimate the incidence and progression of eye diseases in an adult Kenyan population.
  • To provide longitudinal data on vision impairment in sub-Saharan Africa.

Main Methods:

  • Nationally representative sample of individuals aged 50+ in Kenya.
  • Detailed ophthalmic examinations including visual acuity, autorefraction, visual fields, slit lamp, lens grading, and fundus photography.
  • Six-year follow-up assessment repeating baseline methodology, including risk factor assessment.

Main Results:

  • Data collection completed for baseline and six-year follow-up.
  • Analysis of progression and incidence of eye diseases is pending.

Conclusions:

  • The study methodology is designed to yield estimates of eye disease progression and incidence.
  • This research will fill a critical data gap regarding eye health in sub-Saharan Africa.