摘要
目的:比较波前像差仪OPD-Scan Ⅲ、光学相干生物测量仪IOL Master、三维眼前节分析系统Pentacam及自动电脑验光仪KR-8900四种不同仪器测量角膜曲率、角膜散光的差异性和一致性,指导白内障术前检查应用。方法:前瞻性临床研究。选取2017-04/06在我院就诊的白内障患者45例86眼,分别应用OPD-ScanⅢ与Pentacam、IOL Master、KR-8900测量患者受检眼角膜曲率(K1、K2)和散光轴位,并计算出平均角膜曲率(mean keratometry,Km)、散光矢量J0和J45,采用配对样本t检验对测量结果的差异进行比较,相关性分析采用线性相关分析,一致性评价采用Bland-Altman分析。结果:在测量K1值时,OPD-ScanⅢ与IOL Master测量值的差异有统计学意义(P<0.001);在测量K2、Km值时,OPD-ScanⅢ与IOL Master、Pentacam测量值的差异均有统计学意义(P<0.05);OPD-ScanⅢ与另外3种仪器的其他测量值间相比较,差异无统计学意义(P>0.05)。经Pearson相关分析,其结果显示:OPD-ScanⅢ与KR-8900、IOL Master及Pentacam测量值间均有一定相关性(r=0.408～0.980,P<0.001)。Bland-Altman散点图中,OPD-ScanⅢ与Pentacam及IOL Master在测量角膜曲率时一致性较差,与KR-8900的一致性较好;OPD-ScanⅢ与KR-8900、IOL Master、Pentacam在测量角膜散光时一致性较差。结论:OPD-ScanⅢ具有操作简单方便、非接触式等优点。测量角膜曲率时,OPD-ScanⅢ与KR-8900一致性较好,可以相互替换,与Pentacam及IOL Master一致性较差;测量角膜散光时,OPD-ScanⅢ与KR-8900、IOL Master及Pentacam一致性较差,使用时需根据4种仪器的原理、适用范围及临床情况加以衡量。
AIM:To compare corneal curvature and astigmatism values identified with OPD-ScanⅢ,IOL Master,Pentacam and KR-8900 in cataract patients and to evaluate the consistencies and differences.METHODS:In this prospective clinical trial,45 cataract patients(86 eyes),received treatment at the Department of Ophthalmology in our hospital from April 2017 to June 2017,underwent corneal parameters measurements with four instruments:OPD-ScanⅢ,Pentacam,IOL Master,and KR-8900.Measurements included corneal curvature(K1,K2,Km)and astigmatism parameters.The results were assessed using the paired samples t tests,Pearson coefficient,and Bland-Altman plots.RESULTS:The difference of K1 value measured by OPD-ScanⅢand IOL Master was significant(P<0.001).Significant differences were also found in K2 and Km values between OPD-ScanⅢand Pentacam or IOL Master(P<0.05),while others had noncomparable results(P>0.05).All biometry measurements revealed good liner correlation(r=0.408-0.980,P<0.001).The Bland-Altman showed that the corneal curvature and astigmatism vectors examined by OPD-ScanⅢand all other devices had non-comparable results,except for the comparison of K1,K2 and Km measured by OPD-ScanⅢand KR-8900.CONCLUSION:OPD-ScanⅢand KR-8900 can be interchangeable for the measurements of corneal curvature,while the others are not directly interchangeable.The astigmatic results obtained from OPD-ScanⅢare not completely interchangeable with KR-8900,IOL Master or Pentacam.
作者
杜亚茹
李学喜
Ya-Ru Du;Xue-Xi Li(Eye Hospital,the 180th Hospital of Chinese PLA,Quanzhou 362000,Fujian Province,China)
出处
《国际眼科杂志》
CAS
北大核心
2018年第5期904-908,共5页
International Eye Science
