Hong Kong Med J 2007;13(Suppl 4):S4-6
The Hong Kong Adult Vision Study: a cross-sectional epidemiological pilot study of eye diseases in the population aged 40 years and over in Hong Kong
JTF Lau, J Michon
Centre for Epidemiology and Biostatistics, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China
1. Visual disability is common in Hong Kong, with 14.7% of adults aged 40 years and above sustaining visual disability to the level of 6/18 (World Health Organization definition) in one eye.
2. The commonest cause of unilateral and bilateral visual disability was cataract, its primary associated risk factor being increasing age.