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|Title:||Prevalence and associations of cataract in a rural Chinese adult population: The Handan Eye Study||Authors:||Duan, X.R.
|Issue Date:||Jan-2013||Citation:||Duan, X.R., Liang, Y.B., Wang, N.L., Wong, T.Y., Sun, L.P., Yang, X.H., Tao, Q.S., Yuan, R.Z., Friedman, D.S. (2013-01). Prevalence and associations of cataract in a rural Chinese adult population: The Handan Eye Study. Graefe's Archive for Clinical and Experimental Ophthalmology 251 (1) : 203-212. ScholarBank@NUS Repository. https://doi.org/10.1007/s00417-012-2012-x||Abstract:||Background: Cataract remains the leading cause of blindness and visual impairment in the world and in China. However, data on the prevalence of cataract based on standardized lens grading protocols from mainland China are limited. This paper estimated the age- and gender-specific prevalence and risk factor for cataract Methods: In a population-based Chinese sample, participants underwent a comprehensive ophthalmic examination, including assessment of cortical, nuclear, posterior subcapsular (PSC) and mixed lens opacities from slit-lamp grading using the Lens Opacities Classification System III. Results: Of the 7,557 eligible subjects, 6,830 took part in the study (90.4 % response rate), and 6,544 participants (95.8 %, mean age 52.0 ± 11.8 years) had lens data for analyses. The prevalence of any cataract surgery in at least one eye was 0.8 % (95 % confidence interval [CI], 0.62, 1.06), with similar rates between men and women. The overall prevalence of any cataract or cataract surgery was 20.8 % (95 % CI, 19.8, 21.8), higher in women than in men after adjusting for age (23.6 % vs 17.6 %; OR: 1.78; 95 % CI: 1.54-2.07). When distinct lens opacity was categorized in each eye as cortical, nuclear, PSC or mixed, based on one randomly selected eye, cortical cataract was the most common distinct subtype (12.3 %), followed by mixed (3.2 %), nuclear (1.7 %), and PSC (0.2 %) cataract. The prevalence of all lens opacities increased with age (P < 0.001). After excluding other causes for visual impairment, the proportion of people with best corrected visual acuity||Source Title:||Graefe's Archive for Clinical and Experimental Ophthalmology||URI:||http://scholarbank.nus.edu.sg/handle/10635/108496||ISSN:||0721832X||DOI:||10.1007/s00417-012-2012-x|
|Appears in Collections:||Staff Publications|
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