光相干生物测量仪与接触式A型超声测量黄斑水肿患者眼轴长度比较  

Comparison of axial length measurements of lOLMaster and contact A-scan in eyes with macular edema

作　　者：孙靖[1] 梁四妥[1] 张红[1] 

机构地区：[1]天津医科大学眼科中心白内障科眼视光学院,300384

出　　处：《中华眼底病杂志》2012年第4期359-362,共4页Chinese Journal of Ocular Fundus Diseases

摘　　要：目的 对比观察光相干生物测量仪（IOLMaster）和接触式A型超声测量黄斑水肿患者的眼轴长度（AL）的差异，探讨眼轴测量差值与黄斑中心凹厚度的相关性。方法 黄斑水肿患者42例67只眼（病例组）和正常人30名40只眼（正常对照组）纳入研究。采用三维光相干断层扫描（3D OCT-1000）测量所有受检者黄斑中心凹厚度；IOLMaster和接触式A型超声测量AL。Pearson相关分析2种眼轴测量方法差值与黄斑中心凹厚度的相关性。结果 OCT检测结果显示，病例组平均黄斑中心凹厚度为（377.85±119.84） μm。IOLMaster和接触式A型超声测量结果显示，病例组AL分别为（22.95±0.97）、（22.82±1.04） mm，差异有统计学意义（t=-3.102；P=0.003）；正常对照组分别为（23.21±1.08）、（23.17±1.15） mm，差异无统计学意义（t=-1.164；P=0.252）。Pearson相关分析结果显示，病例组AL差值与黄斑中心凹厚度无相关性（r=-0.097；P=0.447）。结论 IOLMaster和接触式A型超声AL测量值存在差异，其差值与黄斑中心凹厚度无相关性。Objective To compare the axial length （AL） measured with IOLMaster and contact A-Scan in eyes with macular edema （ME） and to investigate the correlation between measurement difference and foveal thickness.Methods Sixty-seven ME eyes of 42 patients （ME group） and 40 healthy eyes of 30 participants （control group） were enrolled in this study. Foveal thickness was measured with 3D optical coherence topography （OCT）-1000. The AL was prospectively measured by IOLMaster and contact A-scan.The correlation between measurement difference and foveal thickness was analyzed by Pearson correlation analysis.Results Mean foveal thickness of ME eyes was （377.85±119.84） μm. Mean AL by IOLMaster and contact A-scan were （22.95±0.97） mm and （22.82±1.04） mm in ME group, and （23.21±1.08） mm and （23.17±1.15） mm in the control group respectively. The difference between two groups was statistically significant （t=-3.102,P=0.003）. There was no correlation between measurement difference and foveal thickness in ME group （r=-0.097;P=0.447）. Conclusions There is a difference of AL measurements using contact A-scan and IOLMaster in ME eyes. However, there was no correlation between measurement difference and the foveal thickness.

关 键 词：斑水肿/超声检查 体层摄影术 光学 

分 类 号：R774.5[医药卫生—眼科]