Evaluation of 2 new optical biometry devices and comparison with the current gold standard biometer
Evaluation of 2 new optical biometry devices and comparison with the current gold standard biometer
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DOI：
10.1016/j.jcrs.2010.10.041
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发表时间：
2011-03-01
影响因子：
2.8
通讯作者：
Findl, Oliver
中科院分区：
文献类型：
--
作者：
Chen, Yen-An;Hirnschall, Nino;Findl, Oliver
目得：比较两种新的光学生物测量设备与现有的金标准生物测量仪。单位：奥地利维也纳Hanusch医院眼科，维也纳眼外科研究所。设计：诊断测试或技术评价。方法：在计划进行白内障手术的患者中，使用当前金标准光学生物计进行测量，（IOLMaster）与2种新型光学生物计Lenstar LS 900（光学低相干反射[OLCR]装置;子研究1）和IOLMaster 500（部分相干干涉[PCI]装置;子研究2）进行了比较。计算患者数据录入和实际测量过程的持续时间以及从人工透镜度数计算到测量的时间。金标准器械和新OLCR器械之间轴向长度测量值的平均差异为0.01 mm +/- 0.05（SD），金标准器械和新PCI器械之间为0.01 mm +/- 0.02 mm（分别为P = .12和P < .001）。新OLCR设备的测量时间明显长于金标准设备（平均差异为209 +/- 127秒），金标准设备的测量时间明显长于新PCI设备（平均差异为82 +/- 46秒）（均P < .001）。使用新的PCI设备进行测量所需的时间是使用金标准设备进行测量所需时间的一半。新OLCR设备的测量时间是金标准设备的两倍。
PURPOSE: To compare 2 new optical biometry devices with the present gold standard biometer.SETTING: Vienna Institute for Research in Ocular Surgery, Department of Ophthalmology, Hanusch Hospital, Vienna, Austria.DESIGN: Evaluation of diagnostic test or technology.METHODS: In patients scheduled for cataract surgery, measurements performed with the current gold standard optical biometer (IOLMaster) were compared with those of 2 new optical biometers, the Lenstar LS 900 (optical low-coherence reflectometry [OLCR] device; substudy 1) and the IOLMaster 500 (partial coherence interferometry [PCI] device; substudy 2). The duration of patient data entry and of 1:he actual measurement process and the time from intraocular lens power calculation to printout were calculated.RESULTS: The mean difference in axial length measurements was 0.01 mm +/- 0.05 (SD) between the gold standard device and the new OLCR device and 0.01 +/- 0.02 mm between the gold standard device and the new PCI device (P = .12 and P < .001, respectively). Measurements with the new OLCR device took significantly longer than with the gold standard device (mean difference 209 +/- 127 seconds), and measurements with the gold standard device took significantly longer than with the new PCI device (mean difference 82 +/- 46 seconds) (both P < .001).CONCLUSIONS: All 3 devices were easy to use for biometry before cataract surgery. Measurements with the new PCI device took half as long as those with the gold standard device. Measurements with the new OLCR device took twice as long as those with the gold standard device.