视近-调节对近视发展的影响

The Effect of Near-Accommodation on the Development of Myopia

以上海地区一所民办小学及一所公立小学三年级的学生作为研究对象,通过屈光状态及眼部检测、问卷调查等方法了解学龄儿童近距离工作与近视发病的关系,采用SPSS17.0软件行统计分析,采用两独立样本t检验比较近距离用眼负荷、平均屈光度、眼轴长度(AL)、前房深度(AD)、晶状体厚度(LT)和玻璃体厚度(VL)等之间的关系。对不同组别调节反应、调节滞后进行比较,采用单因素方差分析(ANOVA)调节滞后与视近时间的Pearson相关性。Logistic回归分析关联近视发病的相关因素,以P<0.05为差异具有统计学意义。结果表明,近距离工作时长与近视发病高度相关。为了有效防控近视,在强调户外活动的同时,家校应该合力控制学龄儿童的近距离工作时间。制定减少近距离工作时间对近视的影响对预防儿童近视非常重要。

To investigate the relationship between near work and myopia,the third-grade students from a private primary school and a public elementary school in Shanghai were regarded as participants.The research data were collected by questionnaire,refractive status and eye examination,then statistically analyzed via SPSS 17.0 software.Two independent samples t test were used to compare the eye near work,mean diopter,AL,AD,LT,VT,etc.The adjustment response and adjustment lag of different groups were compared by one-way analysis of variance(ANOVA),and the Pearson correlation analysis was performed between the adjustment lag and the near visual time.Logistic regression analysis was performed to ascertain associations with basic information,genetic factors,environmental factors.P<0.05 was considered statistically significant.According to the results,the diopter hour(DH)is highly correlated with the incidence of myopia.In order to effectively prevent and control myopia,home and schools should work together to control the DH of school-age children,while emphasizing outdoor activities.