Vison

In: Science

Submitted By gawadabdan
Words 4407
Pages 18
S Afr Optom 2010 69(2) 86-92

Refractive error in school children in Agona Swedru, Ghana
G O Ovenseri-Ogbomo* and R Assien† *Department of Optometry, University of Cape Coast, Ghana †Eye Unit, Regional Hospital, Koforidua, Ghana *
Received 25 September 2009; revised version accepted 9 June 2010

Abstract Uncorrected refractive errors remains a public health problem among different population groups. Among schoolchildren, uncorrected refractive errors have a considerable impact on learning and academic achievement especially in underserved and under-resourced communities. A school based cross-sectional study was carried out to estimate the prevalence and distribution of refractive error among schoolchildren in the Agona Swedru municipality of Central Region of Ghana. 637 schoolchildren aged 11-18 years old were randomly selected for the study. Non-cycloplegic refraction was performed on each child who failed the reading test. Hyperopia was defined as spherical power of ≥ + 0.75 D, myopia as ≤ – 0.50 D and astigmatism as a cylindrical power of ≤ – 0.50 D. Of the children examined, only 13.3% had previously had an eye examination. Introduction Uncorrected refractive errors remains a public health problem among different population groups. Among schoolchildren, it has a considerable impact on learning and academic achievement especially in underserved and under-resourced communities. Uncorrected refractive errors in schoolchildren and its impact on academic achievement have only recently received attention. It became necessary therefore to

Visual impairment (VA of 6/12 or worse in the better eye) was present in 4.5% of the children examined. Of those who failed the reading test, 85.9% had refractive error. The prevalence of hyperopia, myopia and astigmatism was 5.0%, 1.7% and 6.6% respectively. The study concludes that uncorrected refractive error is a common…...

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