From the Department of Ophthalmology, Hanusch Hospital, Vienna Institute for Research in Ocular Surgery-Karl Landsteiner Institute, Vienna, Austria .
J Cataract Refract Surg. 2021 Oct 1;47(10):1302-1307. doi: 10.1097/j.jcrs.0000000000000633.
To compare the repeatability of 2 swept-source optical coherence tomography (SS-OCT) biometers, IOLMaster 700 (biometer A, Carl Zeiss Meditec AG) and ANTERION (biometer B, Heidelberg Engineering GmbH) and 1 optical low-coherence reflectometry (OLCR) device (biometer C, LENSTAR, LS900; Haag-Streit AG).
Department of Ophthalmology, Hanusch Hospital, Vienna Institute for Research in Ocular Surgery-Karl Landsteiner Institute, Vienna, Austria.
Prospective study that included patients scheduled for cataract surgery.
Three consecutive measurements were performed with 2 SS-OCT devices and 1 OLCR device. The repeatability of the following biometry variables was compared: keratometry, central corneal thickness, anterior chamber depth (ACD), lens thickness (LT), and axial eye length (AL). To assess the repeatability of each parameter, the within-subject SD (Sw) and coefficient of variation (CoV) were calculated.
Fifty eyes of 50 patients were included. The CoV values were below 0.5 for all variables, except for ACD and LT for biometer C. The Sw values for mean keratometry were 0.018 for biometer A, 0.083 for biometer B, and 0.137 for biometer C. For the ACD, the Sw values were 0.039 and 0.004 for biometer A and biometer B, respectively, and 0.134 for biometer C. For the AL, the values were 0.006 for biometer A, 0.008 for biometer B, and 0.012 for biometer C.
All biometry devices included in the analysis presented a high repeatability. The SS-OCT devices showed a higher repeatability performance compared with the OLCR device.
比较 2 种扫频源光相干断层扫描仪（SS-OCT）生物测量仪，即 IOLMaster 700（生物测量仪 A，卡尔蔡司医学技术公司）和 ANTERION（生物测量仪 B，海德堡工程公司），以及 1 种光学低相干反射仪（OLCR）设备（生物测量仪 C，LS900；海格斯特里特公司）的重复性。
维也纳眼科研究所，维也纳汉斯·克萨维尔医院，眼外科研究所-卡尔·兰德施泰纳研究所，维也纳，奥地利。
前瞻性研究，纳入计划行白内障手术的患者。
使用 2 种 SS-OCT 设备和 1 种 OLCR 设备进行 3 次连续测量。比较以下生物测量变量的重复性：角膜曲率计、中央角膜厚度、前房深度（ACD）、晶状体厚度（LT）和眼轴长度（AL）。为评估每个参数的重复性，计算了个体内标准差（Sw）和变异系数（CoV）。
共纳入 50 例 50 只眼。除生物测量仪 C 的 ACD 和 LT 外，所有变量的 CoV 值均低于 0.5。生物测量仪 A 的平均角膜曲率计 Sw 值为 0.018，生物测量仪 B 为 0.083，生物测量仪 C 为 0.137。对于 ACD，生物测量仪 A 和生物测量仪 B 的 Sw 值分别为 0.039 和 0.004，生物测量仪 C 为 0.134。对于 AL，生物测量仪 A 的值为 0.006，生物测量仪 B 为 0.008，生物测量仪 C 为 0.012。
分析中纳入的所有生物测量设备均具有较高的重复性。与 OLCR 设备相比，SS-OCT 设备表现出更高的重复性。
