Population-based survey of prevalence, causes, and risk factors for blindness and visual impairment in an aging Chinese metropolitan population
AIM： To assess the prevalence, causes, and risk factors for blindness and visual impairment among elderly （〉60 years of age） Chinese people in a metropolitan area of Shanghai, China. METHODS： Random cluster sampling was conducted to identify participants among residents ≥60 years of age living in th...
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| Veröffentlicht in: | International journal of ophthalmology Jg. 10; H. 1; S. 140 - 147 |
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| Sprache: | Englisch |
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China
International Journal of Ophthalmology Press
18.01.2017
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| ISSN: | 2222-3959, 2227-4898 |
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| Abstract | AIM： To assess the prevalence, causes, and risk factors for blindness and visual impairment among elderly （〉60 years of age） Chinese people in a metropolitan area of Shanghai, China. METHODS： Random cluster sampling was conducted to identify participants among residents ≥60 years of age living in the Xietu Block, Xuhui District, Shanghai, China. Presenting visual acuity （PVA） and best-corrected visual acuity （BCVA） were checked by the Early Treatment Diabetic Retinopathy Study （ETDRS） visual chart. All eligible participants underwent a comprehensive eye examination. Blindness and visual impairment were defined according to World Health Organization （WHO） criteria. RESULTS： A total of 4190 persons （1688 men and 2502 women） participated in the study, and the response rate was 91.1%. Based on PVA, the prevalence of blindness was 1.1% and that of visual impairment was 7.6%. Based on BCVA, the prevalence of blindness and visual impairment decreased to 0.9% and 3.9%, respectively. Older （〉80 years of age） women, with low educational levels and smoking habits, exhibited a significantly greater chance for blindness and visual impairment than did those with high educational levels and no smoking habits （P〈0.05）. Based on PVA and BCVA, the main causes of blindness were cataract, myopic maculopathy, and age-related macular degeneration （AMD）. CONCLUSION： Our findings help to identify the population in need of intervention, to highlight the need for additional eye healthcare services in urban China. |
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| AbstractList | To assess the prevalence, causes, and risk factors for blindness and visual impairment among elderly (≥60 years of age) Chinese people in a metropolitan area of Shanghai, China.
Random cluster sampling was conducted to identify participants among residents ≥60 years of age living in the Xietu Block, Xuhui District, Shanghai, China. Presenting visual acuity (PVA) and best-corrected visual acuity (BCVA) were checked by the Early Treatment Diabetic Retinopathy Study (ETDRS) visual chart. All eligible participants underwent a comprehensive eye examination. Blindness and visual impairment were defined according to World Health Organization (WHO) criteria.
A total of 4190 persons (1688 men and 2502 women) participated in the study, and the response rate was 91.1%. Based on PVA, the prevalence of blindness was 1.1% and that of visual impairment was 7.6%. Based on BCVA, the prevalence of blindness and visual impairment decreased to 0.9% and 3.9%, respectively. Older (≥80 years of age) women, with low educational levels and smoking habits, exhibited a significantly greater chance for blindness and visual impairment than did those with high educational levels and no smoking habits (
<0.05). Based on PVA and BCVA, the main causes of blindness were cataract, myopic maculopathy, and age-related macular degeneration (AMD).
Our findings help to identify the population in need of intervention, to highlight the need for additional eye healthcare services in urban China. AIMTo assess the prevalence, causes, and risk factors for blindness and visual impairment among elderly (≥60 years of age) Chinese people in a metropolitan area of Shanghai, China.METHODSRandom cluster sampling was conducted to identify participants among residents ≥60 years of age living in the Xietu Block, Xuhui District, Shanghai, China. Presenting visual acuity (PVA) and best-corrected visual acuity (BCVA) were checked by the Early Treatment Diabetic Retinopathy Study (ETDRS) visual chart. All eligible participants underwent a comprehensive eye examination. Blindness and visual impairment were defined according to World Health Organization (WHO) criteria.RESULTSA total of 4190 persons (1688 men and 2502 women) participated in the study, and the response rate was 91.1%. Based on PVA, the prevalence of blindness was 1.1% and that of visual impairment was 7.6%. Based on BCVA, the prevalence of blindness and visual impairment decreased to 0.9% and 3.9%, respectively. Older (≥80 years of age) women, with low educational levels and smoking habits, exhibited a significantly greater chance for blindness and visual impairment than did those with high educational levels and no smoking habits (P<0.05). Based on PVA and BCVA, the main causes of blindness were cataract, myopic maculopathy, and age-related macular degeneration (AMD).CONCLUSIONOur findings help to identify the population in need of intervention, to highlight the need for additional eye healthcare services in urban China. AIM： To assess the prevalence, causes, and risk factors for blindness and visual impairment among elderly （〉60 years of age） Chinese people in a metropolitan area of Shanghai, China. METHODS： Random cluster sampling was conducted to identify participants among residents ≥60 years of age living in the Xietu Block, Xuhui District, Shanghai, China. Presenting visual acuity （PVA） and best-corrected visual acuity （BCVA） were checked by the Early Treatment Diabetic Retinopathy Study （ETDRS） visual chart. All eligible participants underwent a comprehensive eye examination. Blindness and visual impairment were defined according to World Health Organization （WHO） criteria. RESULTS： A total of 4190 persons （1688 men and 2502 women） participated in the study, and the response rate was 91.1%. Based on PVA, the prevalence of blindness was 1.1% and that of visual impairment was 7.6%. Based on BCVA, the prevalence of blindness and visual impairment decreased to 0.9% and 3.9%, respectively. Older （〉80 years of age） women, with low educational levels and smoking habits, exhibited a significantly greater chance for blindness and visual impairment than did those with high educational levels and no smoking habits （P〈0.05）. Based on PVA and BCVA, the main causes of blindness were cataract, myopic maculopathy, and age-related macular degeneration （AMD）. CONCLUSION： Our findings help to identify the population in need of intervention, to highlight the need for additional eye healthcare services in urban China. |
| Author | Jian- Yan Hu Liang Yan Yong-Dong Chen Xin-Hua Du Ting-Ting Li De-An Liu Dong-Hong Xu Yi-Min Huang Qiang Wu |
| AuthorAffiliation | Shanghai Jiao Tong University Affiliated Sixth People＇sHospital, Shanghai 200233, China Community Health Center, Xietu Street, Xuhui District,Shanghai 200233, China |
| AuthorAffiliation_xml | – name: 2 Community Health Center, Xietu Street, Xuhui District, Shanghai 200233, China – name: 1 Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China |
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| Notes | AIM： To assess the prevalence, causes, and risk factors for blindness and visual impairment among elderly （〉60 years of age） Chinese people in a metropolitan area of Shanghai, China. METHODS： Random cluster sampling was conducted to identify participants among residents ≥60 years of age living in the Xietu Block, Xuhui District, Shanghai, China. Presenting visual acuity （PVA） and best-corrected visual acuity （BCVA） were checked by the Early Treatment Diabetic Retinopathy Study （ETDRS） visual chart. All eligible participants underwent a comprehensive eye examination. Blindness and visual impairment were defined according to World Health Organization （WHO） criteria. RESULTS： A total of 4190 persons （1688 men and 2502 women） participated in the study, and the response rate was 91.1%. Based on PVA, the prevalence of blindness was 1.1% and that of visual impairment was 7.6%. Based on BCVA, the prevalence of blindness and visual impairment decreased to 0.9% and 3.9%, respectively. Older （〉80 years of age） women, with low educational levels and smoking habits, exhibited a significantly greater chance for blindness and visual impairment than did those with high educational levels and no smoking habits （P〈0.05）. Based on PVA and BCVA, the main causes of blindness were cataract, myopic maculopathy, and age-related macular degeneration （AMD）. CONCLUSION： Our findings help to identify the population in need of intervention, to highlight the need for additional eye healthcare services in urban China. blindness; visual impairment; prevalence; riskfactor; cross-sectional study ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 Co-first authors: Jian-Yan Hu and Liang Yan |
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| References_xml | – reference: 21672408 - Prev Chronic Dis. 2011 Jul;8(4):A84 – reference: 19900201 - Acta Ophthalmol. 2010 Sep;88(6):669-74 – reference: 11815334 - Br J Ophthalmol. 2002 Feb;86(2):133-9 – reference: 15177963 - Ophthalmology. 2004 Jun;111(6):1132-40 – reference: 10588299 - Control Clin Trials. 1999 Dec;20(6):573-600 – reference: 18695104 - Arch Ophthalmol. 2008 Aug;126(8):1091-9 – reference: 20100100 - Ophthalmic Epidemiol. 2010 Jan-Feb;17(1):50-7 – reference: 20079923 - Ophthalmology. 2010 Mar;117(3):409-16, 416.e1 – reference: 26218106 - Ophthalmic Epidemiol. 2015;22(4):239-45 – reference: 26644880 - Caspian J Intern Med. 2015 Summer;6(3):141-7 – reference: 25986897 - Ophthalmology. 2015 Jul;122(7):1480-8 – reference: 22177122 - Zhonghua Yan Ke Za Zhi. 2011 Sep;47(9):785-90 – reference: 25680974 - Invest Ophthalmol Vis Sci. 2015 Feb 13;56(2):1120-1 – reference: 23350552 - Ophthalmic Epidemiol. 2013;20(1):26-32 – reference: 20137282 - Zhonghua Yan Ke Za Zhi. 2009 Sep;45(9):786-92 – reference: 23865602 - Ophthalmic Epidemiol. 2013 Aug;20(4):220-7 – reference: 25523434 - BMC Public Health. 2014 Dec 18;14:1299 – reference: 21788079 - Ophthalmology. 2011 Sep;118(9):1790-7 – reference: 11815354 - Br J Ophthalmol. 2002 Feb;86(2):238-42 – reference: 21902783 - Clin Exp Ophthalmol. 2012 Jul;40(5):484-9 – reference: 20335585 - N Engl J Med. 2010 Mar 25;362(12):1090-101 – reference: 22917525 - Ophthalmic Epidemiol. 2012 Oct;19(5):272-7 – reference: 26206569 - Int J Environ Res Public Health. 2015 Jul 22;12(7):8606-18 – reference: 22678502 - Invest Ophthalmol Vis Sci. 2012 Jul 03;53(8):4498-504 – reference: 21090913 - Ophthalmic Epidemiol. 2010 Dec;17(6):400-10 – reference: 24594095 - Ophthalmology. 2014 Jun;121(6):1220-8 |
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