Prevalence of Vision Impairment in Older Adults in Rural China in 2014 and Comparisons With the 2006 China Nine-Province Survey

American Journal of Ophthalmology
Jia-liang ZhaoLei An

Abstract

To estimate the prevalence of vision impairment and blindness in 2014 among older adults in rural China with comparisons with the 2006 Nine-Province Survey. Population-based, cross-sectional study. Geographical cluster sampling was used in randomly selecting residents from a rural county or semi-rural district within 9 provinces: Beijing, Jiangsu, Guangdong, Heilongjiang, Jiangxi, Hebei, Ningxia, Chongqing, and Yunnan. Persons 50 years of age or older were enumerated through household visits and invited to examination sites for visual acuity testing and examination. Vision impairment and blindness in 2014 was compared with data from the 2006 survey. Among 51 310 examined persons, the prevalence of presenting vision impairment (<20/63 to ≥20/400) in the better-seeing eye ranged from 6.05% to 15.3% across the 9 study sites, with presenting blindness (<20/400) ranging from 0.66% to 5.35%. With best-corrected visual acuity, the prevalence of vision impairment ranged from 1.96% to 8.74%, and blindness from 0.47% to 5.01%. Vision impairment was associated with older age, female sex, and little or no education. The overall prevalence of presenting vision impairment and blindness decreased during the 2006-2014 interval by 6.31% and 29....Continue Reading

Citations

Aug 22, 2020·Ophthalmic Epidemiology·Xiu Juan ZhangDennis Shun-Chiu Lam
Oct 26, 2018·Investigative Ophthalmology & Visual Science·Guangming JinMingguang He
Jun 11, 2021·Journal of the American Geriatrics Society·Guiying CaoBeibei Xu
Aug 2, 2021·BMC Health Services Research·Xiaochang YanHua Yan

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