Prevalence and risk factors of visual impairment and blindness in Korea

The Fourth Korea National Health and Nutrition Examination Survey in 2008-2010

Tyler H T Rim, Jae S. Nam, Moonjung Choi, Sungchul Lee, Christopher S. Lee

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Purpose To describe the age, gender specific prevalence and risk factors of visual impairment and blindness in Korea. Methods From 2008 to 2010, a total 14 924 randomly selected national representative participants of the Korea National Health and Nutrition Examination Survey underwent additional ophthalmologic examinations by the Korean Ophthalmologic Society. Best Corrected Distance Visual Acuity was measured using an international standard vision chart based on Snellen scale (Jin's vision chart). Independent risk factors for visual impairment were investigated using multivariate logistic regression analysis. Results The overall prevalence of visual impairment (≤20/40) of adults 40 years and older was 4.1% (95% CI, 3.6-4.6) based on the better seeing eye. The overall prevalence of blindness (≤20/200) for adults 40 years and older was 0.2% (95% CI, 0.1-0.3). Risk indicators of visual impairment were increasing age, low education status, living in rural area, being unemployed, being without spouse and the absence of private health insurance. The visually impaired were more likely to have eye diseases compared with the normal subjects, and they were less likely to utilize eye care. Conclusion The prevalence of visual impairment was demonstrated to be higher while that of blindness was similar to previous population studies in Asia or U.S. Sociodemographic disparities are present in the prevalence of visual impairment and more targeted efforts are needed to promote vision screening in high risk groups.

Original languageEnglish
JournalActa Ophthalmologica
Volume92
Issue number4
DOIs
Publication statusPublished - 2014 Jan 1

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Nutrition Surveys
Vision Disorders
Blindness
Korea
Vision Screening
Eye Diseases
Health Insurance
Spouses
Visual Acuity
Logistic Models
Regression Analysis
Education
Population

All Science Journal Classification (ASJC) codes

  • Ophthalmology

Cite this

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abstract = "Purpose To describe the age, gender specific prevalence and risk factors of visual impairment and blindness in Korea. Methods From 2008 to 2010, a total 14 924 randomly selected national representative participants of the Korea National Health and Nutrition Examination Survey underwent additional ophthalmologic examinations by the Korean Ophthalmologic Society. Best Corrected Distance Visual Acuity was measured using an international standard vision chart based on Snellen scale (Jin's vision chart). Independent risk factors for visual impairment were investigated using multivariate logistic regression analysis. Results The overall prevalence of visual impairment (≤20/40) of adults 40 years and older was 4.1{\%} (95{\%} CI, 3.6-4.6) based on the better seeing eye. The overall prevalence of blindness (≤20/200) for adults 40 years and older was 0.2{\%} (95{\%} CI, 0.1-0.3). Risk indicators of visual impairment were increasing age, low education status, living in rural area, being unemployed, being without spouse and the absence of private health insurance. The visually impaired were more likely to have eye diseases compared with the normal subjects, and they were less likely to utilize eye care. Conclusion The prevalence of visual impairment was demonstrated to be higher while that of blindness was similar to previous population studies in Asia or U.S. Sociodemographic disparities are present in the prevalence of visual impairment and more targeted efforts are needed to promote vision screening in high risk groups.",
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Prevalence and risk factors of visual impairment and blindness in Korea : The Fourth Korea National Health and Nutrition Examination Survey in 2008-2010. / Rim, Tyler H T; Nam, Jae S.; Choi, Moonjung; Lee, Sungchul; Lee, Christopher S.

In: Acta Ophthalmologica, Vol. 92, No. 4, 01.01.2014.

Research output: Contribution to journalArticle

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