«上一篇/Previous Article|本期目录/Table of Contents|下一篇/Next Article»

《眼科新进展》[ISSN:1003-5141/CN:41-1105/R]

卷:

35卷

期数:

2015年11期

页码:

1077-1080

栏目:

应用研究

出版日期:

2015-11-05

文章信息/Info

Title:

Corneal thickness measured by Cirrus HD-OCT in myopic eyes

作者:

马晶; 刘鹤南; 杨飏; 杜长虹; 张桂新; 曹楠珏; 夏丽坤

110004　辽宁省沈阳市，中国医科大学附属盛京医院眼科激光手术中心

Author(s):

MA Jing ;  LIU He-Nan;  YANG Yang ;  DU Chang-Hong; ZHANG Gui-Xin ;  CAO Nan-Jue; XIA Li-Kun

Ophthalmic Laser Operating Center , Shengjing Hospital Affiliated to China Medical University, Shenyang 110004 ,Liaoning Province . China

关键词:

Cirrus HD-OCT; 超声测厚仪; 角膜厚度; 眼轴长度

Keywords:

Cirrus HD-OCT ;  ultrasonic pachymetry ;  corneal thickness ;  ocular axial length

DOI:

10.13389/j.cnki.rao.2015.0295

文献标志码:

A

摘要:

目的　对比分析ＣｉｒｒｕｓＨＤ-ＯＣＴ和Ａ超测量中央角膜厚度的差异性及相关性，并探索ＣｉｒｒｕｓＨＤ-ＯＣＴ角膜测厚与眼轴长度的关系。方法　回顾性研究２０１５年１月至４月拟在我院行角膜激光矫正近视手术的患者４２例（８４眼），按眼轴长度分为三组，Ａ组（３２眼）：眼轴长度２４～２６ｍｍ组；Ｂ组（３１眼）：眼轴长度＞２６～２８ｍｍ组；Ｃ组（２１眼）：眼轴长度＞２８ｍｍ组。利用ＣｉｒｒｕｓＨＤ-ＯＣＴ和Ａ超分别测量患者的中央角膜厚度，用配对ｔ检验来比较两种方法测厚的差异性，用Ｐｅａｒｓｏｎ分析两种方法测厚的相关性，用两独立样本ｔ检验比较不同眼轴组角膜厚度的差异性。结果　Ａ组ＣｉｒｒｕｓＨＤ-ＯＣＴ和Ａ超测量患者的中央角膜厚度分别为（５３９．９１±３０．７４）μｍ和（５４０．２２±３０．７９）μｍ，测量结果差异无统计学意义（ｔ＝０．２３０，Ｐ＞０．０５）。Ｂ组ＣｉｒｒｕｓＨＤ-ＯＣＴ和Ａ超测量患者的中央角膜厚度分别为（５４３．９４±３１．７５）μｍ和（５４４．３６±３３．５８）μｍ，测量结果差异无统计学意义（ｔ＝０．３０４，Ｐ＞０．０５）。Ｃ组ＣｉｒｒｕｓＨＤ-ＯＣＴ和Ａ超测量患者的中央角膜厚度分别为（５４８．１９±２５．８１）μｍ和（５４５．４３±２６．７０）μｍ，测量结果差异也无统计学意义（ｔ＝１．７６６，Ｐ＞０．０５）。ＣｉｒｒｕｓＨＤ-ＯＣＴ和Ａ超测量结果具有显著正相关性（ｒ＝０．９７，Ｐ＜０．０５）。三组间ＣｉｒｒｕｓＨＤ-ＯＣＴ角膜测厚的差异性比较，Ａ组与Ｂ组测量值差异无统计学意义（ｔ＝０．５０４，Ｐ＞０．０５）、Ａ组与Ｃ组测量值差异无统计学意义（ｔ＝０．９９９，Ｐ＞０．０５）、Ｂ组与Ｃ组测量值差异无统计学意义（ｔ＝０．４９９，Ｐ＞０．０５）。ＣｉｒｒｕｓＨＤ-ＯＣＴ测量角膜厚度与眼轴长度无相关性。结论　ＣｉｒｒｕｓＨＤ-ＯＣＴ测量中央角膜厚度结果可靠，且ＣｉｒｒｕｓＨＤ-ＯＣＴ和Ａ超的测量结果显著的正相关。ＣｉｒｒｕｓＨＤ-ＯＣＴ角膜测厚与眼轴长度无关。

Abstract:

Objective To investigate and analyze the differences and correlations between central corneal thickness ( CCT) measured by Cirrus HD-OCT and ultrasonic pachymetry , and find out the correlations between corneal thickness by Cirrus HD-OCT and ocular axial length. Methods The retrospective study measured CCT of 42 patients(84 eyes) who prefer to perform corneal refractive surgery correcting myopia by Cirrus HD-OCT and ultrasonic pachymetry. The patients were divided into three groups by ocular axial length : group A:24 - 26 mm( 32 eyes) ; B : 26 - 28 mm ( 31 eyes) ; C : > 28 mm(21 eyes). CCT was measured by Cirrus HD-OCT and ultrasonic pachymetry, the difference of two measurements was compared by paired t-test. and the Pearson analysis was applied to analyze their correlation. Results In group A, CCT measured by Cirrus HD-OCT was ( 539. 91 + 30. 74 ) p m , and by ultrasonic pachymetry was ( 540. 22 + 30. 79 ) Vm , there was no statistical difference between the two methods ( t = 0. 230 ,P > 0. 05 ) . In group B , CCT measured by Cirrus HD-OCT was ( 543. 94 + 31. 75 ) ym , and by ultrasonic pachymetry was ( 544. 36 + 33. 58 ) Vm, there was no statistical difference between the two methods( t = 0. 304 .P > 0. 05 ) . In group C , CCT measured by Cirrus HD-OCT was ( 548. 19 + 25 . 81 ) ym , and by ultrasonic pachymetry was ( 545 . 43 + 26. 70 ) ym , there was no statistical difference between the two methods ( t = I . 766 ,P > 0. 05 ) . Significant correlations were found between the two methods ( r = 0. 97 ,P < 0. 05 ) . No correlation was found between ocular axial length and central corneal thickness measured by Cirrus HD-OCT. The results between group A and B was not statistically different using two samples of the t-test comparison( t = 0. 504 .P > 0. 05 ) ;The results between group A and C was not statistically different using two samples of the t-test comparison( t = 0. 999 ,P > 0. 05 ) ;the results between B and C was not statistically different using two samples of the t-test comparison( t = 0. 499 ,P > 0. 05 ) . Conclusion Cirrus HD-OCT is reliable in measuring CCT. Furthermore. ocular axial length has no correlation with central comeal thickness.

常用功能

更新日期/Last Update: 2015-11-03