远用矫正眼镜对近视少年儿童阅读的影响

摘要

Objective To study the impact of distance myoporthosis spectacles on reading position among myopic children.Methods A cross-sectional survey of 148 cases was carried out.Children with refractive errors between-0.50 and-6.50 D and astigmatism less than-0.75 D were involved in the study.We recorded the reading posture of children by using a camera and measured head and eye movement patterns under near reading conditions for both uncorrected and corrected conditions.The effect of correction and no correction on the above patterns was also investigated.Data were analyzed using paired t test and Pearson correlation.Results ① Uncorrected myopia influenced reading position,that is,head and eye positions.Refractive correcting spectacles can reduce both the scope of head movement (t=10.661,P＜0.01) and eye movement (t=-4.079,P＜0.01); ②Since eyes and lenses are non-coaxial and away from the optical center,spectacles for distance do not adapt to the change in eye position while reading.Conclusion Spectacles for distance can help myopic children correct their reading position to a certain extent but cannot fully meet the requirements of reading.%目的 探讨远用近视矫正眼镜对近视少年儿童阅读姿势的影响.方法 横断面调查研究.对148例屈光度为-0.50～-6.50 D,散光度小于-0.75 D的少年儿童开展调查,以照相机拍摄的方式记录阅读姿势,并测量其不戴镜与戴镜状态下远、近距离阅读时头眼转动幅度,以探讨戴镜与否对近视儿童阅读的影响.数据采用配对t检验和Pearson相关分析处理.结果 ①近视是否矫正影响阅读时的头、眼位置,配戴矫正眼镜可以减小阅读时头(t=10.661,P＜0.01)、眼移动幅度(t=-4.079,P＜0.01);②阅读时眼与镜片非共轴且视线不经过光心,远用眼镜不能适应阅读时的眼位变化.结论 远用矫正眼镜在一定程度上能帮助近视少年儿童矫正阅读姿势,但是还不完全符合近距离阅读的需求.