协和医学杂志

2012, v.3(02) 200-203

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IOL-Master与A型超声测量前房深度和眼轴长度比较及其相关性
Measurement of Anterior Chamber Depth and Axial Length with IOL-Master or Contact Ultrasonic Axial Scan:Comparison and Correlation

徐海燕;金玉梅;李辉;胡伯越;姜茹欣;
XU Hai-yan,JIN Yu-mei,LI Hui,HU Bo-yue,JIANG Ru-xin Department of Ophthalmology,Peking Union Medical College Hospital,Chinese Academy of Medical Sciences & Peking Union Medical College,Beijing 100730,China

摘要(Abstract):

目的了解IOL-Master生物测量仪的准确性及可靠性。方法对北京协和医院92例患者161眼分别用IOL-Master和A型超声测量前房深度及眼轴长度,同时用IOL-Master及电脑验光仪测量角膜曲率。结果 IOL-Master和A型超声对前房深度的测量值分别为(2.94±0.19)和(2.77±0.13)mm,两种方法比较差异有统计学意义(P<0.001),但两种测量方法无显著相关性(r=0.012,P>0.05)。IOL-Master和A型超声对眼轴长度的测量值分别为(24.10±2.36)和(23.91±2.13)mm,两种方法比较差异有统计学意义(P<0.01),且两种测量方法具有显著相关性(r=0.983,P<0.001)。IOL-Master和电脑验光仪测量角膜曲率分别为(44.38±1.66)和(44.12±1.62)D,两种方法比较差异有统计学意义(P<0.001)。结论 IOL-Master与A型超声均可用于眼前节相关参数测量,基于光学原理基础,IOL-Master测量前房深度和眼轴长度具有良好的可靠性和准确性,为临床生物测量提供了新的选择。
Objective To compare the results of the IOL-Master and contact ultrasonic axial scan (US A-scan)for anterior chamber depth (ACD) and axial length (AL) measurements.Methods A total of 161 eyes of 92 cases were enrolled in this study.ACD and AL estimation were measured with IOL-Master and contact US A-scan,and the corneal curvature was measured by IOL-Master and computer refractometery.Results The ACD measured by IOL-Master and contact US A-scan was (2.94±0.19) mm and (2.77±0.13) mm,respectively,which showed significant difference (P <0.001);however,these two methods showed no significant correlation (r=0.012,P>0.05).The AL measured by IOL-Master and contact US A-scan was (24.10±2.36) mm and (23.91±2.13) mm,which was significantly different between these two measurement methods (P<0.01),and the two measurement methods showed significant correlation (r=0.983,P<0.001).The corneal curvature measured by IOL-Master and computer refractor keratometer was (44.38±1.66) D and (44.12±1.62) D,respectively,which showed significant difference (P<0.001).Conclusions Both IOL-Master and contact US A-scan can be used for the measurement of anterior segment parameters.Based on optical principles,IOL-Master can reliably measure ACD and AL,and thus provides a new option for clinical biological measurements.

关键词(KeyWords): IOL-Master;A型超声;前房深度;眼轴长度
IOL-Master;ultrasonic axial scan;anterior chamber depth;axial length

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作者(Author): 徐海燕;金玉梅;李辉;胡伯越;姜茹欣;
XU Hai-yan,JIN Yu-mei,LI Hui,HU Bo-yue,JIANG Ru-xin Department of Ophthalmology,Peking Union Medical College Hospital,Chinese Academy of Medical Sciences & Peking Union Medical College,Beijing 100730,China

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