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The Prevalence of Blindness, Visual Impairment and Cataract Surgery in Tuoketuo and Shangdu Counties, Inner Mongolia, China

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ABSTRACT
Aim: A population-based survey was conducted in Tuoketuo and Shangdu Counties in Inner Mongolia Autonomous Region, China, in the Autumn of 2010, to assess the prevalence and causes of blindness and visual impairment of people aged 50 years and over. Methods: Random cluster sampling was used to select 82 clusters of 50 residents in the 2 counties. Each survey team included an ophthalmologist, a nurse and a coordinator, who went to door to door in each cluster to identify eligible people. A torch, direct ophthalmoscope and portable slit lamp were used for eye examination. Visual acuity (VA) was tested for each eye of every subject. Those with VA below 6/18 in either eye were examined and causes identified. Results: The survey identified a prevalence of blindness in people aged 50+ in Tuoketuo of 1.2% (95% Confidence Interval: 0.7% - 1.7%) and in Shangdu of 1.4% (95% CI: 1.0% - 1.9%). Cataract was identified as the leading cause of blindness (BL) and severe visual impairment (SVI), and uncorrected refractive errors were the major causes of moderate visual impairment (MVI) in both counties. Over two thirds of blindness, SVI and MVI were identified as avoidable. Conclusions: The prevalence of blindness in people aged 50+ in Tuoketuo and Shangdu was low compared to other studies conducted in China [1] [2]. The prevalence of blindness of people aged 50 years and over could be reduced by up to two thirds through better eye services in the two study areas.
 
Cite this paper
Xiao, B. , Yi, J. , Limburg, H. , Zhang, G. , Mesurier, R. , Müller, A. , Congdon, N. and Iezzi, B. (2015) The Prevalence of Blindness, Visual Impairment and Cataract Surgery in Tuoketuo and Shangdu Counties, Inner Mongolia, China. Open Journal of Ophthalmology, 5, 23-30. doi: 10.4236/ojoph.2015.51005.
 
References
[1]Xiao, B., Kuper, H., Guan, C.h., Bailey, C. and Limburg, H. (2010) Rapid Assessment of Avoidable Blindness in Three Counties, Jiangxi Province, China. British Journal of Ophthalmology, 94, 1437-1442.
http://dx.doi.org/10.1136/bjo.2009.165308
 
[2]Zhao, J.L., Ellwein, L.B., et al. (2010) Prevalence of Vision Impairment in Older Adults in Rural China, the China Nine-Province Survey. The American Academy of Ophtalmology, 117, 409-416.
http://dx.doi.org/10.1016/j.ophtha.2009.11.023
 
[3]Pascolini, D. and Mariotti, S.P. (2012) Global Estimates of Visual Impairment: 2010. The British Journal of Ophthalmology, 96, 614-618.
http://dx.doi.org/10.1136/bjophthalmol-2011-300539
 
[4]World Health Organization (2011) The Fact Sheet No. 282. Bulletin of the World Health Organization, April 2011.
 
[5](2010) Program and Policy Implications, Today’s Research on Aging. Issue 20.
 
[6]http://www.nhfpc.gov.cn/
 
[7]Inner Mongolia Year Book 2005.
 
[8]Zhang, S.Y., et al. (1992) National Epidemiological Survey of Blindness and Low Vision in China. Chinese Medical Journal, 105, 603-608.
 
[9]World Health Organization (1988) Coding Instruction for the WHO/PBL Eye Examination Record (Version III), Geneva; WHO. WHO Document, PBL/88.1.
 
[10]Zhao, J., et al. (2010) Prevalence and Outcomes of Cataract Surgery in Rural China the China Nine-Province Survey. Ophthalmology, 117, 2120-2128.
http://dx.doi.org/10.1016/j.ophtha.2010.03.005
 
[11]Zhao, J.L., Jia, L.J., Sui, R.F. and Ellwein, L.B. (1998) Prevalence of Blindness and Cataract Surgery in Shunyi County, China. American Journal of Ophthalmology, 126, 506-514.
http://dx.doi.org/10.1016/S0002-9394(98)00275-X
 
[12]Wu, M., Yip, J.L. and Kuper, H. (2008) Rapid Assessment of Avoidable Blindness in Kunming, China. Ophthalmology, 115, 969-974.
http://dx.doi.org/10.1016/j.ophtha.2007.08.002
 
[13]Liang, Y.B., et al. (2008) Prevalence and Causes of Low Vision and Blindness in a Rural Chinese Adult Population: The Handan Eye Study. Ophthalmology, 115, 1965-1972.
http://dx.doi.org/10.1016/j.ophtha.2008.05.030
 
[14]Xu, L., et al. (2006) Prevalence of Visual Impairment among Adults in China: The Beijing Eye Study. American Journal of Ophthalmology, 141, 591-593.
http://dx.doi.org/10.1016/j.ajo.2005.10.018                                         eww150225lx
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