BYD
Date:2010-11-23 14:47
oduce 100 times per second, shading, use of computers in this environment, usually the strobe lamp and screen flashing overlaps the frame rate, the formation of optical resonance, damage to the human visual system is large, especially for children, it is easy to nearsighted. According to an early China, the United States, Australia, childrens myopia prevention in cooperation research project survey, the incidence of myopia of Chinese youth up to 50% -60%! Director of the Ministry of Health Key L
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