Abstract: Objective To explore the status of myopia in children and adolescents in Rugao City and analyze its influencing factors,to provide the reference information for promoting the visual health of children and adolescents in Rugao City. Methods From January to December 2022,7 primary schools and 7 middle schools were randomly selected from 3 streets and 11 towns under the jurisdiction of Rugao City. Children and adolescents who met the conditions in the selected schools were subjected to routine visual acuity examinations and questionnaire surveys. Descriptive epidemiological analysis was used to analyze the results of visual acuity examinations,and a survey of myopia related factors was conducted. Univariate and multivariate analyses were used to analyze the factors affecting myopia in children and adolescents. Results Among 4 811 effective subjects,1 296 cases of myopia were detected,and the myopia rate was 26.94%. Multivariate logistic regression analysis indicated that age （OR=1.982）,BMI （OR=1.511）,close relatives myopia （OR=6.170）,daily outdoor activity time （OR=0.568）,maintaining correct reading and writing posture （OR=0.820）,single screen time （OR=3.600）,correct use of reading and writing desk lamps （OR=0.695）,other bad eye habits （OR=1.687）,regular visual acuity examinations （OR=0.417）,and the accuracy of parents' knowledge and behavior on myopia prevention and control （OR=0.674）were influencing factors for myopia in children and adolescents. Conclusions Myopia in children and adolescents in Rugao City needs to be improved,and it is influenced by various factors. The status of myopia needs to be taken seriously by education and medical administrative departments,and targeted prevention measures need to be formulated to promote the visual health of children and adolescents in the region.

Key words: Children, Adolescent, Myopia, Influencing factor