Measurement of gradient refractive index profile of crystalline lens of fisheye in vivo using optical coherence tomography

被引：56

作者：

Verma, Y.

Rao, K. D. ^{[1
]}

Suresh, M. K.

Patel, H. S.

Gupta, P. K.

机构：

[1] Raja Ramanna Ctr Adv Technol, Laser Biomed Applicat, Indore 452013, India

[2] Raja Ramanna Ctr Adv Technol, Instrumentat Div, Indore 452013, India

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2007年 / 87卷 / 04期

基金：

中国国家自然科学基金;

关键词：

RESONANCE-IMAGING MRI; EYE;

D O I：

10.1007/s00340-007-2689-4

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the use of optical coherence tomography (OCT) for noninvasive measurement of the refractive index profile of a crystalline lens of a fisheye. The approach exploits the fact that OCT provides a direct measurement of the optical path of the light traveled through the medium. The gradient refractive index profile for the crystalline lens was retrieved by iterative fitting of the optical path calculated by the ray tracing method with that experimentally measured using OCT. The estimated error in refractive index is approximately 1%. The measured gradient refractive index and Matthiessen's ratio (ratio of focal length to lens radius) are in good agreement with the previously reported values.

引用

页码：607 / 610

页数：4