AIM:To investigate the prevalence and related factors of dry eye in primary school pupils in Lanzhou, Gansu Province.

METHODS: From October to November 2016, 1 347 pupils in two primary schools in Lanzhou, Gansu Province, were randomly selected as subjects. Every pupil was carried on the questionnaire of dry eye and eye inspection to confirm the diagnosis of dry eye. Besides, the prevalence and influencing factors of dry eye in pupils were analyzed by chi-square test, Mann-Whitney U test and logistic regression model.

RESULTS: A total of 1 268 pupils took part in this study and the inclusion ratio was 94.14%; 271 individuals were diagnosed as dry eye, and the prevalence rate was 21.37%. Statistical analysis showed that the risk factors of dry eye were male, senior pupils, often using eye drops, poor reading habits, wearing contact lenses, video terminals last for a long time, learning pressure.

CONCLUSION: Dry eye has become one of the main diseases that plagued pupil's life and learning. It should cause wide attention. Considering the above factors, rational use of eye and improve lifestyle will help to reduce the damage to eye of pupils.