A Population-based Study of Visual Impairment Among Pre-school Children in Beijing: The Beijing Study of Visual Impairment in Children - Lu, Qing; Zheng, Yuanyuan; Sun, Baochen; Cui, Tongtong; Congdon, Nathan; Hu, Ailian; Chen, Jianhua; Shi, Jiliang (American journal of ophthalmology, 2009)
Keywords: Age; Biological and medical sciences; Blindness; Child; Child, Preschool; Children & youth; China - epidemiology; Eye Diseases, Hereditary - epidemiology; Eyes & eyesight; Female; Gender; Health Surveys; Humans; Male; Medical sciences; Miscellaneous; Myopia; Ophthalmology; Prevalence; Refractive Errors - epidemiology; Rural Population - statistics & numerical data; Schools; Urban Population - statistics & numerical data; Vision Disorders - epidemiology; Vision Tests; Visual Acuity; Visually Impaired Persons - statistics & numerical data; China; Beijing China; Human; Preschool age; Eye disease; Visual impairment; Vision disorder; Ophthalmology; Child