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停止配戴角膜塑形镜后眼部参数的变化及相关性
Authors
卢为为
Publication date
1 January 2019
Publisher
Editorial Office of Journal of Sun Yat-sen University
Abstract
【目的】观察配戴角膜塑形镜1年并停戴1月后的屈光状态和角膜前表面参数的恢复情况,并分析屈光度变化的相关因素。【方法】回顾性病例研究。收集66例(66眼)配戴角膜塑形镜并自愿停戴的8~15岁近视儿童,配戴时间约1年,平均13(S=3)月,停戴平均29(S=4)d。观察戴镜前及停戴1月的屈光度、眼轴、眼压、前房深度及角膜地形图参数,采用配对t检验和Pearson相关性分析停戴后的各参数变化及其相关性。【结果】与配戴角膜塑形镜前相比,停戴1月后的等效球镜度增长了-0.13(-0.50~0.00)D(P<0.001),其中柱镜度数增长了0.00(-0.25~0.00)D,(P=0.013)。停戴1月的角膜陡峭K值、平坦K值、平坦和陡峭偏心率较戴镜前分别减少了0.10(-0.10~0.30)D、0.20(0.00~0.48)D、-0.10(-0.30~0.20)D,(P1=0.001、P2<0.001、P3=0.015)。戴角膜塑形镜1年并停戴1月后屈光度增长量(Y)仅与眼轴增长值(X)具有密切联系,并建立回归方程^y=-1.294X+0.095(P<0.001)。【结论】儿童停戴角膜塑形镜1月后的屈光状态已经超过戴镜前水平,角膜前表面形态基本恢复到戴镜前的初始形态
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Last time updated on 15/10/2024