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Evaluation of distribution of presbyopic correction through primary healthcare centres in Zanzibar, East Africa

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  • Funding Sightsavers International, Nairobi, Kenya.

  • Competing interests None.

  • Patient consent Obtained.

  • Ethics approval Ethics approval was provided by the London School of Hygiene & Tropical Medicine and Zanzibar Ministry of Health.

  • Provenance and peer review Not commissioned; externally peer reviewed.