From the Studio Oculistico d'Azeglio, Bologna, Italy (Galzignato, Barboni); University Eye Clinic, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy (Lupardi); Stein Eye Institute, University of California, Los Angeles, California (Hoffer); St. Mary's Eye Center, Santa Monica, California (Hoffer); San Raffaele Hospital, Milan, Italy (Barboni); IRCCS G.B. Bietti Foundation, Rome, Italy (Schiano-Lomoriello, Savini).
J Cataract Refract Surg. 2023 Jan 1;49(1):5-10. doi: 10.1097/j.jcrs.0000000000001023.
To evaluate the repeatability of the measurements provided by a new optical biometer (EyeStar 900) based on swept-source optical coherence tomography (SS-OCT) and their agreement with the measurements given by 2 validated biometers based on the same technology, the IOLMaster 700 and Argos.
IRCCS G.B. Bietti Foundation, Rome, Italy.
Prospective evaluation of diagnostic test.
In a series of unoperated eyes, 3 consecutive scans were acquired with the EyeStar 900, and 1 with the IOLMaster 700 and the Argos. The following biometry parameters were analyzed: axial length (AL), keratometry (K), corneal astigmatism, central corneal thickness, corneal diameter (CD), anterior chamber depth (ACD), lens thickness (LT), and lens tilting. Repeatability was assessed using test-retest variability, the coefficient of variation (CoV), and the intraclass correlation coefficient (ICC); agreement was based on the 95% limits of agreement.
56 eyes of 56 patients were analyzed. High repeatability was achieved for all measured parameters, as the CoV was <1% in most cases and ICC was >0.95 for all parameters. Good to high agreement was found among the measurements of the 3 optical biometers, although some statistically significant differences were detected between the EyeStar 900 and Argos (mean K, ACD, LT, and CD were higher with the Argos). The Argos measured a shorter AL in eyes >25 mm.
The new generation SS-OCT EyeStar 900 optical biometer produces highly repeatable measurements that are in good agreement with those provided by 2 previously validated instruments.
评估基于扫频源光学相干断层扫描（SS-OCT）的新型光学生物测量仪（EyeStar 900）提供的测量值的重复性及其与基于相同技术的两种经过验证的生物测量仪（IOLMaster 700 和 Argos）所提供的测量值的一致性。
意大利罗马 G.B. Bietti 基金会眼科研究所。
诊断测试的前瞻性评估。
在一系列未手术的眼中，使用 EyeStar 900 采集了 3 次连续扫描，并使用 IOLMaster 700 和 Argos 进行了 1 次扫描。分析了以下生物测量参数：眼轴长度（AL）、角膜曲率（K）、角膜散光、中央角膜厚度、角膜直径（CD）、前房深度（ACD）、晶状体厚度（LT）和晶状体倾斜。使用测试-再测试变异性、变异系数（CoV）和组内相关系数（ICC）评估重复性；一致性基于 95%的一致性界限。
共分析了 56 例 56 只眼。大多数情况下，所有测量参数的重复性均较高，因为 CoV ＜1%，而所有参数的 ICC 均＞0.95。虽然在 EyeStar 900 和 Argos 之间检测到一些统计学上显著的差异（Argos 测量的平均 K、ACD、LT 和 CD 较高），但发现这 3 种光学生物测量仪的测量值之间存在良好到高度一致。Argos 在眼轴长度＞25mm 的眼中测量的眼轴长度较短。
新一代 SS-OCT EyeStar 900 光学生物测量仪可提供高度可重复的测量值，与两种先前经过验证的仪器提供的测量值具有良好的一致性。
