{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,10]],"date-time":"2026-07-10T14:41:32Z","timestamp":1783694492114,"version":"3.55.0"},"reference-count":28,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2014,1,29]],"date-time":"2014-01-29T00:00:00Z","timestamp":1390953600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Ophthalmologica"],"published-print":{"date-parts":[[2014,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To describe the age, gender specific prevalence and risk factors of visual impairment and blindness in <jats:styled-content style=\"fixed-case\">K<\/jats:styled-content>orea.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>From 2008 to 2010, a total 14\u00a0924 randomly selected national representative participants of the <jats:styled-content style=\"fixed-case\">K<\/jats:styled-content>orea <jats:styled-content style=\"fixed-case\">N<\/jats:styled-content>ational <jats:styled-content style=\"fixed-case\">H<\/jats:styled-content>ealth and <jats:styled-content style=\"fixed-case\">N<\/jats:styled-content>utrition <jats:styled-content style=\"fixed-case\">E<\/jats:styled-content>xamination <jats:styled-content style=\"fixed-case\">S<\/jats:styled-content>urvey underwent additional ophthalmologic examinations by the <jats:styled-content style=\"fixed-case\">K<\/jats:styled-content>orean Ophthalmologic Society. Best Corrected Distance Visual Acuity was measured using an international standard vision chart based on <jats:styled-content style=\"fixed-case\">S<\/jats:styled-content>nellen scale (<jats:styled-content style=\"fixed-case\">J<\/jats:styled-content>in's vision chart). Independent risk factors for visual impairment were investigated using multivariate logistic regression analysis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The overall prevalence of visual impairment (\u226420\/40) of adults 40\u00a0years and older was 4.1% (95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content>, 3.6\u20134.6) based on the better seeing eye. The overall prevalence of blindness (\u226420\/200) for adults 40\u00a0years and older was 0.2% (95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content>, 0.1\u20130.3). 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.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The prevalence of visual impairment was demonstrated to be higher while that of blindness was similar to previous population studies in <jats:styled-content style=\"fixed-case\">A<\/jats:styled-content>sia or <jats:styled-content style=\"fixed-case\">U<\/jats:styled-content>.<jats:styled-content style=\"fixed-case\">S<\/jats:styled-content>. Sociodemographic disparities are present in the prevalence of visual impairment and more targeted efforts are needed to promote vision screening in high risk groups.<\/jats:p><\/jats:sec>","DOI":"10.1111\/aos.12355","type":"journal-article","created":{"date-parts":[[2014,1,30]],"date-time":"2014-01-30T06:56:08Z","timestamp":1391064968000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":38,"title":["Prevalence and risk factors of visual impairment and blindness in <scp>K<\/scp>orea: the <scp>F<\/scp>ourth <scp>K<\/scp>orea <scp>N<\/scp>ational <scp>H<\/scp>ealth and <scp>N<\/scp>utrition <scp>E<\/scp>xamination <scp>S<\/scp>urvey in 2008\u20132010"],"prefix":"10.1111","volume":"92","author":[{"given":"Tyler H. 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