Journal article

Prevalence and Causes of Visual Impairment in Chinese Adults in Urban Southern China The Liwan Eye Study

Shengsong Huang, Yingfeng Zheng, Paul J Foster, Wenyong Huang, Mingguang He

ARCHIVES OF OPHTHALMOLOGY | AMER MEDICAL ASSOC | Published : 2009

Abstract

OBJECTIVE: To assess the prevalence and causes of visual impairment and blindness in adults living in an urban area of southern China. METHODS: Random cluster sampling was used to identify the adults 50 years and older living in the Liwan district of Guangzhou, China. Presenting visual acuity (PVA) with habitual correction and best-corrected visual acuity (BCVA) based on autorefraction and subjective refraction were measured using the Early Treatment Diabetic Retinopathy Study visual chart. Blindness and low vision were defined according to World Health Organization criteria. Eyes with visual impairment were assigned 1 principal cause for the impairment. RESULTS: Visual acuity measurements w..

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University of Melbourne Researchers

Grants

Awarded by University College London Graduate Research Scholarship and Overseas Research Scholarship


Awarded by Scientific and Technology Foundation of Guangdong Province


Awarded by Sun Yat-sen University Clinical Research


Awarded by Medical Research Council


Awarded by Wellcome Trust


Funding Acknowledgements

Dr He is recipient of a University College London Graduate Research Scholarship and Overseas Research Scholarship (2001061054), grant 2005B30901008 from the Scientific and Technology Foundation of Guangdong Province, and Sun Yat-sen University Clinical Research 5010 Project. Dr Foster receives support from The Medical Research Council (grant G0401527), Wellcome Trust (grant 075110), and The Richard Desmond Charitable Foundation (via Fight for Sight).