高度近视LASIK前后Orbscan-Ⅱ应用的研究  

The useful value of Orbscan-II for hypermyopia before and after LASIK

作　　者：刘菲[1] 荣运久[1] 侯忠敏[1] 唐恺[1] 张巍[1] 刘芳[1] 

机构地区：[1]解放军第89医院眼科,山东省潍坊市261021

出　　处：《眼外伤职业眼病杂志》2003年第6期384-385,共2页Journal of Injuries and Occupational Diseases of the Eye with Ophthalmic Surgeries

摘　　要：目的 探讨新一代角膜地形图系统Orbscan-Ⅱ在高度近视LASIK手术前后检查中的应用价值。方法 于LASIK术前和术后1月对130例高度近视分别用Orbscan-Ⅱ和超声角膜测厚仪测量角膜厚度并进行统计学比较。并同时用Orbscan-Ⅱ测量角膜后表面顶点距理想球面的距离(Diff值),观察术前及术后的动态变化。结果 超声测量瞳孔中央角膜厚度,术前为(539.3±64.54)μm。术后1月为(452.1±45.6)μm。术前Orbscan-Ⅱ测量的瞳孔中央角膜厚度、角膜最薄点厚度与超声结果比较差异无显著意义(P>0.05),术后1月Orbscan-Ⅱ的测量结果与超声结果差异有非常显著意义(P<0.01)。0rbscan-Ⅱ同时显示术后Diff值较术前者明显增大。结论 Orbscan-Ⅱ角膜检测对高度近视LASIK手术具有重要指导意义。Objective To study the usefulness of the Orbscan-II in the examination for LASIK. Methods Before LASIK and 1 month after the operation 130 eyes of hypermyopia were assessed using both Orbscan-II and ultrasonic pachymetry (UP).The corneal thickness from the 2 instruments were statistically compared. Corneal posterior surface was measured by Orbscan-II to observe the change before and after the operation. Results The corneal thickness on the center of the pupil from UP was (539.3 ±64.54)μm before LASIK and (452.1 ± 45.6)μm 1 month after the operation;There was no statistical difference ( P > 0.05) between the corneal thickness on the center of the pupil (or corneal thinnest point) from UP and that from Orbscan-II.But 1 month after LASIK,the corneal thickness from UP was statistically different to that from Orbscan-II ( P < 0.01) .Diff value and other thickness related factors were also revealed by Orbscan-II. Diff value of post-op was increased obviously than pre-op.Conclusion The corneal examination using Orbscan-II before the operation is very important for LASIK.

关 键 词：高度近视 LASIK Orbscan-Ⅱ 临床应用 研究 超声角膜测厚法 

分 类 号：R779.63[医药卫生—眼科]