Lenstar在眼球生物学测量中的应用

Lenstar for ocular biometry measurements

准确的眼球生物学测量是人工晶状体（IOL）及各类屈光手术研究的关键。Lenstar作为一种新型的眼球生物学测量仪，其非接触性测量方式、简便的操作、较多的测量指标及高精确性等特点使其逐渐应用于临床及科研中。本文就Lenstar的测量原理、特点，Lenstar测量眼轴长度、前房深度、角膜曲率、中央角膜厚度、晶状体厚度、玻璃体腔深度、视网膜厚度、脉络膜厚度、虹膜水平直径、瞳孔直径、视轴偏斜角度，以及用于IOL度数计算的相关研究及应用等作一综述。

Accurate ocular biometrics are critical to intraocular lens （IOL） implantation or refractive surgery. Lenstar LS900 as a new optical low coherence reflectometry device is well received in both clinical and research work, due to its non-contact measurement, single alignment requirement, more parameters and high resolution, etc. This article will review the principle, characteristics of Lenstar, the research and clinical applications on measuring axial length, anterior chamber depth, corneal curvature, central corneal thickness, lens thickness, vitreous chamber depth, retinal thickness, choroidal thickness, horizontal iris width, pupil size, visual axis decentration and IOL estimator, etc.