近年来,青少年近视的发生率有逐年增高的趋势。据最近的一调查表明:小学生 项调查表明:小学生视力在0.5以下的约占5%,初高中生为20%左右。传统的观念认为:读书写字的姿势不当和过多地收看电视是造青少年视力低下的原因。但根据专家的研究,认为不适当的饮食也视的重要原因之一 In recent years, the incidence of adolescent myopia has increased year by year trend. According to a recent survey shows that: primary school students survey showed that: pupils visual acuity below 0.5 in about 5%, about 20% of high school students. The traditional view is that improper reading and writing and excessive watching of television are the causes of poor eyesight in adolescents. However, according to expert studies, one of the important reasons that inappropriate food is also considered