PURPOSE To examine the repeatability and reproducibility of biometry provided by a new anterior-posterior segment spectral-domain optical coherence tomography (SD-OCT) device (Revo NX) and compare it with that provided by a validated optical low-coherence reflectometry (OLCR) biometer (Lenstar LS 900). SETTING Hygeia Clinic, Gdańsk, Poland. DESIGN Prospective evaluation of diagnostic test. METHODS The axial length (AL), lens thickness (LT), central corneal thickness (CCT), and anterior chamber depth (ACD) (corneal epithelium to lens) were measured in eyes of volunteers. Two skilled operators obtained 3 measurements in random order with the SD-OCT device. Repeatability was calculated for each observer, while reproducibility was assessed by a change in observer. To compare agreement between the SD-OCT device and OLCR device, the first observer took 3 measurements with both devices. RESULTS The study evaluated 63 eyes of 63 volunteers. The mean AL measurement (+0.11 mm ± 0.02 [SD]) and mean ACD measurement (0.05 ± 0.04 mm) were significantly higher with the SD-OCT device than with the OLCR device; the CCT measurements did not differ between the devices. A very strong correlation was found for all parameters, while Bland-Altman analysis showed narrow 95% limits of agreement for AL (0.06 to 0.15 mm), ACD (-0.02 to 0.12 mm), LT (-0.23 to 0.17 mm), and CCT (-7.83 to 6.17 μm). CONCLUSIONS The new SD-OCT device provided repeatable and reproducible AL, ACD, LT, and CCT measurements. The results with the SD-OCT device showed strong correlations with those obtained with the OLCR device. However, the AL and ACD measurements of the 2 devices cannot be considered interchangeable.

中文翻译：

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在新型光学相干断层扫描仪中实现的光学生物测定法的可重复性和可重复性，并与光学低相干反射仪进行比较。

目的检查新型前后段光谱域光学相干断层扫描（SD-OCT）设备（Revo NX）提供的生物测定的可重复性和可重复性，并将其与经过验证的光学低相干反射测定法（OLCR）进行比较生物测定仪（Lenstar LS 900）。地点波兰格但斯克的Hygeia诊所。设计对诊断测试的前瞻性评估。方法在志愿者的眼睛中测量轴向长度（AL），晶状体厚度（LT），中央角膜厚度（CCT）和前房深度（ACD）（角膜上皮至晶状体）。两名熟练的操作员使用SD-OCT设备以随机顺序获得了3个测量值。计算每个观察者的可重复性，而通过观察者的变化评估可重复性。为了比较SD-OCT设备和OLCR设备之间的协议，第一位观察者对这两种设备进行了3次测量。结果该研究评估了63名志愿者的63只眼睛。SD-OCT设备的平均AL测量值（+0.11 mm±0.02 [SD]）和ACD平均测量值（0.05±0.04 mm）显着高于OLCR设备。设备之间的CCT测量没有差异。发现所有参数都具有非常强的相关性，而Bland-Altman分析显示AL（0.06至0.15 mm），ACD（-0.02至0.12 mm），LT（-0.23至0.17 mm）和CCT（-7.83至6.17μm）。结论新的SD-OCT设备提供了可重复和可重复的AL，ACD，LT和CCT测量。SD-OCT设备的结果与OLCR设备的结果显示出很强的相关性。然而，