Prevalence and causes of blindness and visual impairment in Muyuka: a rural health district in South West Province, Cameroon.

The British Journal of Ophthalmology
Joseph Enyegue OyeA Foster

Abstract

To estimate the prevalence and causes of blindness and visual impairment in the population aged 40 years and over in Muyuka, a rural district in the South West Province of Cameroon. A multistage cluster random sampling methodology was used to select 20 clusters of 100 people each. In each cluster households were randomly selected and all eligible people had their visual acuity (VA) measured by an ophthalmic nurse. Those with VA <6/18 were examined by an ophthalmologist. 1787 people were examined (response rate 89.3%). The prevalence of binocular blindness was 1.6% (95% CI: 0.8% to 2.4%), 2.2% (1.% to 3.1%) for binocular severe visual impairment, and 6.4% (5.0% to 7.8%) for binocular visual impairment. Cataract was the main cause of blindness (62.1%), severe visual impairment (65.0%), and visual impairment (40.0%). Refractive error was an important cause of severe visual impairment (15.0%) and visual impairment (22.5%). The cataract surgical coverage for people was 55% at the <3/60 level and 33% at the <6/60 level. 64.3% of eyes operated for cataract had poor visual outcome (presenting VA<6/60). Strategies should be developed to make cataract services affordable and accessible to the population in the rural areas. There is an ur...Continue Reading

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Citations

Feb 16, 2010·Global Public Health·S Lewallen, R D Thulasiraj
Mar 29, 2007·The British Journal of Ophthalmology·Joseph Enyegue Oye, Hannah Kuper
Mar 1, 2007·PLoS Medicine·Jeremiah NgondiPaul M Emerson
Oct 4, 2011·Clinical Ophthalmology·André Omgbwa EballéAssumpta Lucienne Bella
Dec 29, 2010·Medicinski pregled·Risto Kozomara, Bojan Kozomara
Dec 19, 2012·Middle East African Journal of Ophthalmology·Olubayo U KolawoleCaroline O Adeoti
Jun 7, 2013·Middle East African Journal of Ophthalmology·Fatima KyariHannah Faal
Jun 3, 2014·BMC Ophthalmology·Andrew BastawrousHannah Kuper
Dec 12, 2012·Journal français d'ophtalmologie·N GuirouJ Traoré
Sep 21, 2010·Survey of Ophthalmology·Julie SchneiderPaul Mitchell
Sep 18, 2014·Public Health Nursing·Jane Blood-SiegfriedKathryn Wood
Apr 14, 2015·Journal of Diabetes and Metabolic Disorders·Ahmadou M JingiCôme Ebana Mvogo
Aug 15, 2008·Clinical & Experimental Ophthalmology·Jacqueline RamkeGarry Brian
Jun 10, 2008·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Rènée du ToitGarry Brian
Jun 15, 2011·Clinical & Experimental Ophthalmology·Hannah ForwardDavid A Mackey
Jul 22, 2014·Tropical Medicine & International Health : TM & IH·Erik SchaftenaarRemco P H Peters
Feb 1, 2014·Tropical Medicine & International Health : TM & IH·Andrew BastawrousHannah Kuper
Jul 11, 2012·Ophthalmic Epidemiology·Levi KandekeSusan Lewallen
Nov 9, 2010·Ophthalmology·Abdullahi U ImamUNKNOWN Nigeria National Blindness and Visual Impairment Study Group
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Sep 28, 2010·Ophthalmic Epidemiology·Ellen E FreemanSlim Haddad
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Jul 15, 2017·Journal of Ophthalmology·Haile Fentahun DargeYinebeb Mezgebu Dagnachew
Feb 6, 2010·Ophthalmic Epidemiology·Celestin HabiyakireSusan Lewallen

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