The client of Chinanews.com, June 5 (Zhang Ni). On the eve of the National Eyes Day, the National Health and Health Commission held a press conference. It was introduced at the meeting that the survey results showed that the overall myopia rate of children and adolescents nationwide in 2018 was 53.6%. Among them, 14.5% are 6-year-old children, 36.0% are elementary school students, 71.6% are junior high school students, and 81.0% are high school students. Myopia in children and adolescents has become the main cause of visual impairment in China.