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我院八二级新生入学时的视力不良率是40%,而八五级新生入学时的视力不良率已达63%,经检验(P<0.01)差异非常显著。说明大学新生的视力水平直线下降。为了分析造成这种差异的主要因素,我们学习并采用了胡诞宁等介绍的大组家系调查方法计算了八二级、八五级新生的近视遗传度进行比较。报告如下:
Eighty-two freshmen in our hospital had a 40% rate of vision impairment at the time of admission, while the 85th percentile rate of freshmen at the age of 85 had a poor rate of vision loss of 63%. The difference was significant (P <0.01). Indicating that freshmen’s eyesight level plummeted. In order to analyze the main factors contributing to this difference, we studied and adopted the large-scale pedigree investigation method introduced by Hu Yanning et al. To compare the degree of myopia of 8th-, 8th-grade freshmen. The report is as follows: