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三、近视眼流行病学研究的一些问题1、近视眼流行病学是研究近视眼的分布特点、变化规律及决定因素,制定保护视力、预防近视眼的对策与措施。视力低常率=视力低常眼(人)数检查总眼(人)数×100%近或远视力低常,或二者均低常。一眼或双眼视力低常者。近视率=远视力低常、近视力正
Third, some problems of myopia epidemiology research 1, myopia epidemiology is to study the distribution characteristics of myopia, changes in the law and determine the factors that develop protection of eyesight, prevention and treatment of myopia measures and measures. Low visual acuity = low vision low eye (people) check the total number of eyes (people) × 100% near or far vision is low, or both are low. A glance or binocular vision of those with low. Myopia rate = low vision often, near vision is positive