[关键词]
[摘要]
目的: 探讨中低度近视病人屈光手术后角膜生物力学相关参数的变化,从角膜生物力学角度对屈光
手术的安全性及有效性进行研究。方法: 选择中低度近视病人80 例,进行Corvis ST 检查,对手术前及术后1wk
病人的眼压( intraocular pressure,IOP) 及角膜生物力学主要参数包括中央角膜厚度( central covneal thickness,
CCT) 、第一压平时间( the first applanation time,A-time 1) 及最大形变幅度( deformation amplitude,DA) 等进行分
析。结果: 屈光手术前后IOP 值分别为19.113±3.494mmHg 和13.385±3.011mmHg,CCT 值分别为576.137±36.894
μm 和( 478.201±40.543) μm,A-time 1 值分别为7.523± 0.379ms 和7.465± 0.093ms,差异均有统计学意义( P<
0.05) ; DA 值分别为0.948±0.071mm 和0.974±0.107mm,差异无统计学意义( P>0.05) 。结论: 中低度近视病人角
膜屈光手术后角膜生物力学参数中IOP、CCT 及A-time 1 有变化,DA 值无变化。
[Key word]
[Abstract]
Objective: To study the efficacy and safety of refractive surgeryfrom the perspective of
corneal biomechanical,we do a research to discuss the change of corneal biomechanical parameters on
patients with moderate myopia after refractive surgery.Methods: In this retrospective study,we choose
80 cases of moderate myopia patients to examine intraocular pressure( IOP) and biomechanical parameters(
central corneal thickness,CCT; the first applanation time,A-time 1; deformation amplitude,DA)
before and after refractive surgery.Results: Before and after refractive surgery, the mean value of IOP
respectively is 19.113 ± 3.494 mmHg and 13.385 ± 3.011 mmHg,CCT is 576.137 ± 36.894 μm and
478.201±40.543μm,A-time 1 is 7.523±0.379ms and 7.465±0.093ms and DA is 0.948±0.071mm and
0.974±0.107mm.So we can draw a conclusion that there are a significantly difference in the mean value
of IOP,CCT and A-time 1 between pro-operation and post-operation( P<0.05) ,but no difference in
the mean value of DA( P>0.05) .Conclusion: The corneal refractive surgery on patients with moderate
myopiahas changed the value of IOP,CCT and A-time 1,but not changed DA.
[中图分类号]
R779.6
[基金项目]
收稿日期: 2017-03-03; 修回日期: 2017-08-20
基金项目: 国家自然科学基金项目( 81460090) ,内蒙古自治区教育厅一般项目( NJZY16119)
作者简介: 关文英( 1983-) ,女,内蒙古医科大学附属医院近视眼激光治疗中心主治医师。
通讯作者: 赵海霞,主任医师,硕士研究生导师,医学博士,E-mail: zhaohaixia@ sohu.com 内蒙古医科大学附属医院,
010050