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为摸清青少年近视的发展规律,我们于一九八四年对咸阳市城区六所中。小学校6286名学生采用对数视力表及屈光镜进行了视力调查,并采用雾视法区别真假近视,以探讨学生近视发展规律。 1 从学生视力中位数的分布来看(表1)和视器官的发育规律基本上是吻合的。一年级(7～8岁)视力中位数较低,但在5.0以上,随着年龄的增长,视力中位数到5、6年级时最高,此时年龄约为12、13岁,这时视器官的功能已基本完善,以后视力中位数又趋于下降。视器官的发育明显受到后天因素的影响,促使发育着的视器官为了适应学生
In order to find out the law of the development of juvenile myopia, we in 1984 to Xianyang City in six. 6,286 pupils in primary schools used visual acuity logarithm and refractive lens for visual acuity investigation, and used fog method to distinguish true and false myopia to explore the law of myopia development. 1 From the perspective of the distribution of students’ eyesight (Table 1) and the development of organs is basically consistent. The first year (7-8 years old) lower visual acuity, but 5.0 above, with age, the median visual acuity to the highest in grades 5 and 6, this age is about 12,13 years old, then Depending on the function of the organ has been basically improved, after the median visual acuity tends to decline. Depending on the organ development obviously affected by acquired factors, to promote the development of the visual organ in order to adapt to students