Atlas 9000、Orbscan和Pentacam测量近视角膜非球面系数(Q值)的差异和一致性  

Difference and agreement of myopic corneal asphericity(Q value ) measured by Atlas 9000,Orbscan and Pentacam

作　　者：肖信[1] 刘伟民[1] 黄建忠[1] 王英[1] 

机构地区：[1]广西壮族自治区人民医院视光科广西视光中心,广西壮族自治区南宁市530021

出　　处：《眼科新进展》2016年第3期241-243,共3页Recent Advances in Ophthalmology

基　　金：广西自然科学基金(编号:2015GXNSFBA139148);广西卫生厅自筹科研课题(编号:Z2013345)~~

摘　　要：目的评价Atlas 9000、Orbscan及Pentacam三种方法测量近视患者角膜非球面系数(Q值)的差异和一致性。方法横断面比较性研究,随机选取在广西视光中心就诊的成年近视患者49例(98眼),分别应用Atlas 9000、Orbscan及Pentacam测量患者的角膜Q值。采用随机区组设计资料的方差分析(Two-way ANOVA)比较不同仪器测量结果的差异,采用Pearson相关系数分析不同仪器测量结果的相关性,采用Bland-Altman分析评价不同方法测量结果的一致性。结果 Atlas 9000、Orbscan及Pentacam测得的角膜Q值分别为-0.342±0.135、-0.302±0.182和-0.305±0.120,三种方法测得角膜Q值差异有统计学意义(F=5.465,P=0.005),两两比较表明Atlas 9000与Orbscan、Pentacam的检测结果比较差异均有统计学意义(均为P<0.05),测得负值更大,但Orbscan与Pentacam检测结果间比较差异无统计学意义(P>0.05)。Pearson相关分析显示,Atlas 9000、Orbscan与Pentacam测得的角膜Q值之间均有正相关性(均为P<0.001)。Bland-Altman一致性分析表明Atlas 9000与Pentacam一致性好。结论 Atlas 9000、Orbscan及Pentacam测量近视患者角膜Q值存在一定差异,但Atlas 9000与Pentacam的一致性较好,两者可相互参考。Objective To evaluate the difference and agreement of myopic corneal asphericity（Q value） measured by Atlas 9000,Orbscan and Pentacam. Methods This was a cross-sectional,comparative study. Forty-nine cases of adult myopia（98 eyes） were selected randomly from the Visual Science and Optometry Center of Guangxi,the Q value were measured by Atlas9000,Orbscan and Pentacam. The difference of Q value measured by Atlas 9000,Orbscan and Pentacam were compared by Two-way ANOVA,and the correlation and agreement of Q value were analyzed by Pearson correlation and Bland-Altman analysis. Results Q value measured by Atlas 9000,O rbscan and Pentacam were- 0. 342 ± 0. 135,- 0. 302 ± 0. 182 and- 0. 305 ± 0.120,respectively. There was statistical significant difference in the Q value measured by Atlas9000,Orbscan and Pentacam（F = 5. 465,P = 0. 005）,and there were significant differences between Atlas 9000 and Orbscan,Atlas 9000 and Pentacam（all P 〈 0. 05）,but no difference between Orbscan and Pentacam（P 〉 0. 05）. Significantly statistical correlation were observed in the Q value measured by Atlas 9000,Orbscan and Pentacam（all P 〈 0. 001）. Bland-Altman analysis showed that satisfactory agreement was observed in the Q value measured by Atlas 9000 and Pentacam. Conclusion There are significantly statistical difference in the Q value measured by Atlas 9000,Orbscan and Pentacam. However,the agreement in the Q value measured by Atlas 9000 and Pentacam is satisfactory.

关 键 词：角膜非球面系数 ATLAS 9000 ORBSCAN PENTACAM 

分 类 号：R311[医药卫生—基础医学]