Causes of blindness and visual impairment in urban and rural areas in Beijing: the Beijing Eye Study.

@article{Xu2006CausesOB,
  title={Causes of blindness and visual impairment in urban and rural areas in Beijing: the Beijing Eye Study.},
  author={L. T. Xu and Yaxing Wang and Yibin Li and Yun Song Wang and Tongtong Cui and Jian-Jun Li and Jost Bruno Jonas},
  journal={Ophthalmology},
  year={2006},
  volume={113 7},
  pages={1134.e1-11}
}
OBJECTIVE To evaluate the causes of visual impairment and blindness in adult Chinese in an urban and rural region of Beijing, China. DESIGN Population-based prevalence survey. PARTICIPANTS From a rural region and an urban region of Greater Beijing, 4439 of 5324 > or=40-year-old invited subjects participated in the study (response rate, 83.4%). Using the World Health Organization (WHO) standard and the United States standard, blindness was defined as best-corrected visual acuity (BCVA) in… CONTINUE READING