Carkeet Andrew, Saw Seang-Mei, Gazzard Gus, Tang Wilfred, Tan Donald T H
School of Optometry, Queensland University of Technology, Brisbane, Australia.
Optom Vis Sci. 2004 Nov;81(11):829-34. doi: 10.1097/01.opx.0000145020.33250.c0.
This study compares the repeatability of IOLMaster (Zeiss, Oberkochen, Germany) axial dimension measurements and conventional ultrasonography in children.
A series of IOLMaster (partial coherence interferometry, optical pachometry) and Echoscan (US 800, Nidek, Tokyo, Japan) (ultrasound) measurements were taken on 179 Chinese children (mean age, 10.6 +/- 0.8 years) taking part in a longitudinal study of myopia development, and the measurements were repeated on 37 of these subjects.
IOLMaster axial length measurements showed better repeatability (95% limits of agreement for repeatability, -0.047 to 0.038 mm) than Echoscan axial length measurements (95% limits of agreement for repeatability, -0.85 to 0.67 mm). IOLMaster anterior chamber depth measurements also showed better repeatability (95% limits of agreement for repeatability, -0.053 to 0.073 mm) than Echoscan anterior chamber depth measurements (95% limits of agreement for repeatability, -0.57 to 0.49 mm). IOLMaster measurements were, on average, slightly larger than Echoscan measurements for axial length (by 0.14 mm) and anterior chamber depth (0.09 mm).
Partial coherence interferometry techniques, such as that used by IOLMaster, should be considered as the standard technique for axial length measurement in children because they are noninvasive, highly precise, and easy to use.
本研究比较IOLMaster（德国奥伯科亨蔡司公司）轴向尺寸测量与传统超声检查在儿童中的重复性。
对179名参与近视发展纵向研究的中国儿童（平均年龄10.6±0.8岁）进行了一系列IOLMaster（部分相干干涉测量法、光学测厚法）和Echoscan（日本东京尼德克US 800型）（超声）测量，并对其中37名受试者进行了重复测量。
IOLMaster轴向长度测量的重复性（重复性的95%一致性界限为-0.047至0.038毫米）优于Echoscan轴向长度测量（重复性的95%一致性界限为-0.85至0.67毫米）。IOLMaster前房深度测量的重复性（重复性的95%一致性界限为-0.053至0.073毫米）也优于Echoscan前房深度测量（重复性的95%一致性界限为-0.57至0.49毫米）。IOLMaster测量的轴向长度（平均大0.14毫米）和前房深度（平均大0.09毫米）平均略大于Echoscan测量值。
应将IOLMaster所采用的部分相干干涉测量技术视为儿童轴向长度测量的标准技术，因为它们是非侵入性的、高度精确的且易于使用。
