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RESEARCH STUDY

RESEARCH

Prevalence of Vision Impairment and Refractive Error in School Children in Ba Ria – Vung Tau Province, Vietnam

AUTHOR:

Paudel, P., Ramson, P., Naduvilath, T., Wilson, D., Phuong, H.T., Ho, S.M. and Giap, N.V.

SPONSOR/INSTITUTION:

YEAR PUBLISHED:

2014

PUBLICATION:

Clinical & Experimental Ophthalmology

KEY HIGHLIGHTS:

  • The purpose of this study was to assess the prevalence of vision impairment and refractive error in school children 12–15 years of age in Ba Ria – Vung Tau province, Vietnam.

  • This was a cross sectional school based study conducted with 2238 secondary school children selected by stratified multistage cluster sampling method.

  • The prevalence of uncorrected visual impairment due to refractive error in one or both eyes was 21.4%.

  • The causes of vision impairment were refractive error in 92.7%, amblyopia in 2.2%, cataract in 0.7%, retinal disorders in 0.4%, other causes in 1.5% and unexplained causes in the remaining 2.6%.

  • The prevalence of vision impairment due to myopia in either eye was 20.4%, hyperopia was 0.4% and emmetropia with astigmatism was 0.7%.

  • Vision impairment due to myopia was associated with higher school grade and increased time spent reading and working on a computer.

  • Uncorrected RE (myopia in particular) is the most common cause of VI in secondary school children in Vietnam indicating the need for RE services.