目的：探讨昌都市14岁以下儿童干眼症患病情况调查及危险因素。

方法：横断面研究，于2019-08对昌都市14岁以下中小学生进行流行病学调查，采用自制问卷调查，分析该地区14岁以下儿童干眼症患病情况调查及危险因素。

结果：本研究理论受检儿童2 648例，调查过程中共2 389例儿童接受调查，总体受调查率为90.22%，实际受检者中有干眼症状413例(17.29%)，确诊干眼症331例，干眼症患病率为13.86%。单因素分析显示，干眼症儿童和非干眼症儿童的年龄、性别、眼部手术史、眼部外伤史、喜食蔬菜水果、过敏性结膜炎、倒睫、屈光不正、沙眼、睑缘炎、阅读书写姿势、隐形眼镜、看电脑或手机时间、被动吸烟、抗生素滴眼液的资料有差异(P<0.05)。多因素Logistic分析显示，年龄、过敏性结膜炎、睑腺炎、屈光不正、被动吸烟是昌都市儿童干眼症发生的危险因素(P<0.05)。

结论：昌都市14岁以下儿童干眼症发病率较高，年龄、过敏性结膜炎、睑腺炎、屈光不正、被动吸烟是昌都市儿童干眼症发生的危险因素。

METHODS: A cross-sectional study was conducted in August 2019 to investigate the epidemiology of primary and secondary school students under 14 years old in Changdu city, and the prevalence and risk factors of xerophthalmia in children under 14 years old in this area were analyzed by self-made questionnaire.

RESULTS:There were 2 648 children in this study, 2 389 of them were investigated in the course of investigation, the overall investigation rate was 90.22%, 413 of them had dry eye symptoms(17.29%), 331 of them were diagnosed as dry eye disease, and the prevalence rate of dry eye disease was 13.86%. The univariate analysis showed that there were significant differences in age, gender, history of eye surgery, history of eye trauma, preference for fruits and vegetables, allergic conjunctivitis, trichiasis, ametropia, trachoma, blepharitis, reading and writing posture, contact lens, computer or hand machine time, passive smoking, antibiotic eyedrop between children with dry eye and children without dry eye(P<0.05). The results of multivariate Logistic analysis showed that age, allergic conjunctivitis, blepharitis, ametropia and passive smoking were the risk factors(P<0.05).

CONCLUSION: The incidence of dry eye is high in children under 14 years old in Changdu city, and the age, allergic conjunctivitis, blepharitis, ametropia and passive smoking are the risk factors of children's dry eye in Changdu city.