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为观察我地区学生视力变化状况，根据（全国中小学生视力监测实施方案），我们于1996年5－6月对本地区一、二牧场的4所中小学校的1757名中小学生进行了视力检查，现将结果报道如下。1对象与方法1．1对象：本地区两个牧场的两所汉族中小学校和两所哈萨克族（以下简称“哈族”）
In order to observe the changes in the eyesight of students in our region, according to (National primary and secondary school students’ vision monitoring implementation plan), from May to June 1996, 1757 primary and secondary school students from 4 primary and secondary schools in primary and secondary pastures in the region were examined for visual acuity. The results are reported below. 1 Subjects and Methods 1.1 Subjects: Two Han primary and secondary schools and two Kazakhs (hereinafter referred to as “Kazakhs”) in two pastures in the region,