A new method to objective refraction based on the curvature distributions of wave-front aberrations surface

被引：0
|
作者：
Fang L. [1 ,2 ]
He X. [2 ]
Chen M. [2 ]
机构：
[1] Institute of Modern Optics, Nankai University
[2] Key Laboratory of Nondestructive Testing, Nanchang Hangkong University, Nanchang
来源：
Guangxue Xuebao/Acta Optica Sinica | 2010年 / 30卷 / 02期
关键词：
Medical optics; Refraction; Visual optics; Wave-front aberration;
D O I：
10.3788/AOS20103002.0485
中图分类号：
学科分类号：
摘要：
The accuracy and precision of objective refraction from wave-front aberrations are important in the clinical medicine about optometry and ophthalmology. Based on the wave-front aberration data from human eyes, the curvature distributions of wave-front aberration surface are computed, and the spherical and cylindrical objective refractions in pupil plane are obtained. The refractions in the plane located at spectacle lenses are calculated through ocular wave-front propagation. This method takes into account the influence of higher-order aberration on objective refractions of human eyes. By analyzing the difference between the objective refraction from wave-front aberration and the subjective refraction, the result reveals that the objective refraction with a 4 mm pupil is nearly to the subjective refraction. The mean sphere difference is 0.06D, the mean cylinder difference is -0.07D, and the mean cylinder axis difference is 0.62°. The results show that the objective refractions from wave-front aberration with a 4 mm pupil can be used to predict the subjective refraction actually.
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页码：485 / 490
页数：5
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