目的：分析赤峰市青少年人群的视力不良情况及近视患病率，探究影响近视发病的相关因素。

方法：于2019-09/12采取多阶段随机抽样方法在赤峰市选取小学四年级～高三年级学生2 070人进行问卷调查，并进行视力检查，分析该地区近视发生情况及影响因素。

结果：本研究纳入学生2 070人，视力不良发生率为56.96%，其中近视患病率52.22%。多因素Logistic回归分析显示，高年级、女性、有遗传史、常吃甜食、油炸食物、不吃早餐、较长的作业及补习班时间、使用移动设备、躺着或趴着用眼、走路或乘车用眼、一次用眼时间过长是近视的危险因素； 而无其他视力不良、食用新鲜水果、调整桌椅高度、常做眼保健操、课间在户外活动、保持一尺的坐姿、家长及老师经常监督坐姿、较少观看电视、增加持续运动及睡眠时间等是近视的保护因素。

结论：赤峰市青少年的近视率普遍较高，应积极关注学生个人情况，改善学生校内和校外用眼环境，纠正学生不良用眼习惯，增加学生户外运动及睡眠时间。

METHODS: A multi-stage random sampling method was adopted from September to December in 2019. A total of 2 070 students from primary 4^th grade to junior in high school in Chifeng were selected for questionnaire surveys and visual inspections to analyze influencing factors and the occurrence of myopia in the region.

RESULTS: Among 2 070 students in this research, the incidence of poor vision was 56.96% and the incidence of myopia was 52.22%. Multivariate Logistic regression analysis showed that the risk factors of myopia were senior grade, female, genetic history, loving to eat sweets, fried food, no breakfast, longer time homework and cram school, using mobile devices, having bad eye habits and using eyes for long time once. The protective factors of myopia were no other poor vision, eating fresh fruits, adjusting the height of tables and chairs, doing eye exercises, doing outdoor activities between classes, a one-foot sitting posture, supervising the sitting posture by parents and teachers, less watching TV, increasing outdoor exercise and sleeping time.

CONCLUSION: The myopia incidence of adolescents in Chifeng is generally higher. We should actively pay attention to the personal situation of students, improve visual environment inside and outside school, correct bad visual habits, and increase outdoor exercise and sleep time.