Abstract:AIM:To investigate the relationship between dry eyes incidence and poor vision in primary and middle school students in the urban-rural fringe of Guangzhou.
METHODS: We used stratified cluster random sampling, extracted the urban-rural fringe elementary school and middle school, gave out self-made questionnaire survey to 3572 students, at the same time, underwent ophthalmology routine inspection and tear secretion test, rupture time measurement and corneal and conjunctival fluorescein staining.
RESULTS: The overall number of poor vision was 764 people(1447 eyes), the overall poor vision was 20.25% counted by eye amount, the rate of poor vision in primary school was 14.08%, in junior high school was 29.51%, in junior middle school was significantly higher than that in primary school(P<0.05). The number of subjects with dry eyes was 424 cases(848 eyes), the overall incidence of dry eyes was 11.87%, among them the occurring rate of dry eyes in primary school was 5.14%, in junior middle school was 21.96%, which was significantly higher than that in primary school(P<0.05). Ordered multivariate Logistic regression analysis showed that junior high school, doing homework for 1-3h or >3h every day, eyes away from the book <30cm, lying down when reading books, watching TV or playing computer phone for 1-3h and >3h every day, dry eyes, and the nutritional status(fat or thin)were the risk factors of poor vision in primary and middle school students the(OR=3.862, 1.164, 1.210, 1.212, 1.315, 1.319, 3.040, 1.110, 1.057 and 1.141).
CONCLUSION: The risk factors of primary and middle school students vision is multifarious, dry eyes is a risk factor for poor vision of primary and middle school students in the urban-rural fringe of Guangzhou.
