Prevalence of asthenopia and its risk factors in Chinese college students.

@article{Han2013PrevalenceOA,
  title={Prevalence of asthenopia and its risk factors in Chinese college students.},
  author={Cheng-Cheng Han and Rong Zhen Liu and Ru-ru Liu and Zhong-Hai Zhu and Rong-bin Yu and Le Ma},
  journal={International journal of ophthalmology},
  year={2013},
  volume={6 5},
  pages={
          718-22
        }
}
AIM To determine the prevalence of asthenopia and identify any associated risk factors in the college students in Xi'an, China. METHODS From April to September 2012, 1 500 students from five universities in Xi'an were selected according to a multi-stage stratified cluster sampling method. Data on demographic features, lifestyle or dietary habits, health status, living environment conditions, sleep and mental status, and asthenopia symptoms were collected through a self-administered validated… CONTINUE READING

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