为了迎接一九七九年全国沙眼会议召开,我们利用业务学习的时间,到上五庄,大堡子等地区的学校,进行沙眼发病率的调查,调查的对象是小学生,中学生及应届高考的学生。调查时以手电筒照明,查睑结膜的乳头,滤泡瘢痕和角膜新生血管两者都有作为诊断的依据,按沙Ⅰ沙Ⅱ分类法,其病变范围以(+),(廿)表示 In order to meet the convening of the National Trachoma Conference in 1979, we used the hours of business study to conduct surveys on the incidence of trachoma to schools in areas such as Shangwuzhuang and Da Baozi. The survey targets pupils, middle school students and fresh college entrance exam students . Survey to flashlight, check the conjunctival papilla, follicular scar and corneal neovascularization both have as a basis for diagnosis, according to sand Ⅰ sand Ⅱ classification, the range of lesions to (+), (20) that