给出利用激光散斑测定人眼屈光不正的理论依据和有关公式,详细介绍了激光散斑验光仪的光路系统和主要特点以及临床应用研究的结果。 The theoretical basis and the related formulas for measuring refractive error of human eye by using laser speckle are given. The optical system of laser speckle refraction meter and its main characteristics and the results of clinical application are introduced in detail.