１９９７～１９９８年，我们采用远雾视法预防近视，收到较好的效果。现报告如下。资料与方法：选择视力正常的中学生１２０例（２４０眼），其中男６０例、女６０例，年龄１２～１５岁。将其随机分为实验组与对照组各６０例。实验组每一个学生均测其瞳孔距离，在５ｍ远处... From 1997 to 1998, we used far-fog method to prevent myopia and received better results. The report is as follows. Materials and Methods: There were 120 middle school students (240 eyes) with normal vision, including 60 males and 60 females, aged 12 to 15 years old. They were randomly divided into experimental group and control group of 60 cases. Each pupil in the experimental group measured its pupillary distance at a distance of 5m.