Aims To assess the repeatability and reproducibility of the ocular measurements obtained with the Suoer SW-9000 μm Plus, a new fully automatic biometer based on optical low coherence reflectometry (OLCR) biometer, and to compare them to those obtained by a swept-source optical coherence tomography (SS-OCT)-based biometer. Methods This prospective study consisted of 115 eyes of 115 healthy subjects. The measurements were taken by the two optical biometers in random order. The measured parameters were axial length (AL), central corneal thickness (CCT), aqueous depth (AQD), anterior chamber depth (ACD), mean keratometry (Km), lens thickness (LT) and corneal diameter (CD). To evaluate the intraobserver repeatability and interobserver reproducibility, the within-subject SD, test–retest variability, coefficient of variation (CoV) and intraclass correlation coefficient (ICC) were adopted. The Bland-Altman plot was drawn to assess the agreement. Results The repeatability and reproducibility of all parameters for the new device were excellent (ICC>0.960 and CoV<0.71%). The Bland-Altman plots showed high agreement between the OLCR-based and SS-OCT-based devices for AL, CCT, AQD, ACD, Km and LT, with narrow 95% limit of agreements (LoAs) (−0.08 mm to 0.06 mm, −15.91 µm to −1.01 µm, −0.09 mm to 0.09 mm, −0.09 mm to 0.08 mm, −0.47 D to 0.35 D, −0.05 mm to 0.16 mm, respectively) and moderate agreement for CD (95% LoA: −0.67 mm to −0.01 mm). Conclusions The new Suoer SW-9000 μm Plus biometer showed excellent repeatability and reproducibility. All the parameters obtained by this biometer were similar to those measured by SS-OCT-based biometer. Data are available on reasonable request.

中文翻译：

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新型全自动测量光学低相干反射生物计的重复性和再现性以及与基于扫频光学相干断层扫描的生物计的一致性


目的 评估使用 Suoer SW-9000 μm Plus（一种基于光学低相干反射计 (OLCR) 生物计的新型全自动生物计）获得的眼部测量结果的重复性和再现性，并将其与扫频光源获得的结果进行比较基于相干断层扫描（SS-OCT）的生物计。方法 这项前瞻性研究由 115 名健康受试者的 115 只眼睛组成。两个光学生物计以随机顺序进行测量。测量参数为眼轴（AL）、中央角膜厚度（CCT）、房水深度（AQD）、前房深度（ACD）、平均角膜曲率（Km）、晶状体厚度（LT）和角膜直径（CD）。为了评估观察者内的重复性和观察者间的再现性，采用了受试者内 SD、重测变异性、变异系数 (CoV) 和组内相关系数 (ICC)。绘制布兰德-奥特曼图来评估协议。结果新装置所有参数的重复性和再现性均非常好（ICC>0.960 且 CoV<0.71%）。 Bland-Altman 图显示基于 OLCR 和基于 SS-OCT 的设备在 AL、CCT、AQD、ACD、Km 和 LT 方面高度一致，具有狭窄的 95% 一致性极限 (LoA)（−0.08 mm 至 0.06 mm） ，分别为-15.91 µm至-1.01 µm、-0.09 mm至0.09 mm、-0.09 mm至0.08 mm、-0.47 D至0.35 D、-0.05 mm至0.16 mm）以及CD的中等一致性（95% LoA：- 0.67 毫米至-0.01 毫米）。结论 新型索尔 SW-9000 μm Plus 生物计表现出优异的重复性和再现性。该生物计获得的所有参数与基于 SS-OCT 的生物计测量的参数相似。可根据合理要求提供数据。