Vision problems: A review of prevalence studies on refractive errors in school-age children

Background: Refractive errors are common eye disorders and are leading causes of visual impairment in the general population. Children with uncorrected refractive error may experience reduced visual acuity, transient blurring, headache and persistent ocular discomforts particularly for close work wh...

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Main Authors: Uchenna C. Atowa, Rekha Hansraj, Samuel O. Wajuihian
Format: Article
Language:English
Published: AOSIS 2019-05-01
Series:African Vision and Eye Health
Subjects:
Online Access:https://avehjournal.org/index.php/aveh/article/view/461
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author Uchenna C. Atowa
Rekha Hansraj
Samuel O. Wajuihian
author_facet Uchenna C. Atowa
Rekha Hansraj
Samuel O. Wajuihian
author_sort Uchenna C. Atowa
collection DOAJ
description Background: Refractive errors are common eye disorders and are leading causes of visual impairment in the general population. Children with uncorrected refractive error may experience reduced visual acuity, transient blurring, headache and persistent ocular discomforts particularly for close work which can impair reading efficiency and school performance. Aim: This article documents the prevalence of refractive errors in school-age children of different ethnic origins. The goal is to identify possible variation in measuring techniques and diagnostic criteria, as well as limitations of studies, to provide a clear direction for future studies. Methods: The review was undertaken through a detailed evaluation of peer-reviewed publications of primary research on this topic. The keywords for the search included ‘refractive error’, ‘hyperopia’, ‘myopia’, ‘astigmatism’ and ‘school children’. Only epidemiological studies with participants between 5 and 18 years of age were included. Results: Although several population and school-based studies have been conducted in various racial groups and populations, their findings were diverse owing to inconsistencies in the methods applied in identifying children in need of refraction, measurement techniques and diagnostic criteria for refractive errors. There are also some limitations associated with the sampling design and characteristics, which may have influenced the outcome measures. Conclusion: Despite the problems inherent in the studies, the review indicates that refractive error in school-age children is a public health concern in those populations and warrants additional research that will provide reliable data for proper planning of intervention strategies.
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spelling doaj.art-7a6f17d5379f44d183f85d21f09821e42022-12-22T01:56:14ZengAOSISAfrican Vision and Eye Health2413-31832410-15162019-05-01781e1e710.4102/aveh.v78i1.461385Vision problems: A review of prevalence studies on refractive errors in school-age childrenUchenna C. Atowa0Rekha Hansraj1Samuel O. Wajuihian2Discipline of Optometry, University of KwaZulu-Natal, DurbanDiscipline of Optometry, University of KwaZulu-Natal, DurbanDiscipline of Optometry, University of KwaZulu-Natal, DurbanBackground: Refractive errors are common eye disorders and are leading causes of visual impairment in the general population. Children with uncorrected refractive error may experience reduced visual acuity, transient blurring, headache and persistent ocular discomforts particularly for close work which can impair reading efficiency and school performance. Aim: This article documents the prevalence of refractive errors in school-age children of different ethnic origins. The goal is to identify possible variation in measuring techniques and diagnostic criteria, as well as limitations of studies, to provide a clear direction for future studies. Methods: The review was undertaken through a detailed evaluation of peer-reviewed publications of primary research on this topic. The keywords for the search included ‘refractive error’, ‘hyperopia’, ‘myopia’, ‘astigmatism’ and ‘school children’. Only epidemiological studies with participants between 5 and 18 years of age were included. Results: Although several population and school-based studies have been conducted in various racial groups and populations, their findings were diverse owing to inconsistencies in the methods applied in identifying children in need of refraction, measurement techniques and diagnostic criteria for refractive errors. There are also some limitations associated with the sampling design and characteristics, which may have influenced the outcome measures. Conclusion: Despite the problems inherent in the studies, the review indicates that refractive error in school-age children is a public health concern in those populations and warrants additional research that will provide reliable data for proper planning of intervention strategies.https://avehjournal.org/index.php/aveh/article/view/461hyperopiamyopiaastigmatismschool-age childrenschool performance
spellingShingle Uchenna C. Atowa
Rekha Hansraj
Samuel O. Wajuihian
Vision problems: A review of prevalence studies on refractive errors in school-age children
African Vision and Eye Health
hyperopia
myopia
astigmatism
school-age children
school performance
title Vision problems: A review of prevalence studies on refractive errors in school-age children
title_full Vision problems: A review of prevalence studies on refractive errors in school-age children
title_fullStr Vision problems: A review of prevalence studies on refractive errors in school-age children
title_full_unstemmed Vision problems: A review of prevalence studies on refractive errors in school-age children
title_short Vision problems: A review of prevalence studies on refractive errors in school-age children
title_sort vision problems a review of prevalence studies on refractive errors in school age children
topic hyperopia
myopia
astigmatism
school-age children
school performance
url https://avehjournal.org/index.php/aveh/article/view/461
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AT rekhahansraj visionproblemsareviewofprevalencestudiesonrefractiveerrorsinschoolagechildren
AT samuelowajuihian visionproblemsareviewofprevalencestudiesonrefractiveerrorsinschoolagechildren