Share Email Print
cover

Proceedings Paper

The construction of individual eye model based on eye's wavefront aberration measurement
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Based on the widely used Gullstrand-Le Grand eye model, the individual human eye model has been established here, which has individual corneal data, anterior chamber depth and the eyeball depth. Furthermore the foremost thing is that the wavefront aberration calculated from the individual eye model is equal to the eye's wavefront aberration measured with the Hartmann-shack wavefront sensor. There were four main steps to build the model. Firstly, the corneal topography instrument was used to measure the corneal surfaces and depth. And in order to input cornea into the optical model, high order aspheric surface-Zernike Fringe Sag surface was chosen to fit the corneal surfaces. Secondly, the Hartmann-shack wavefront sensor, which can offer the Zernike polynomials to describe the wavefront aberration, was built to measure the wavefront aberration of the eye. Thirdly, the eye's axial lengths among every part were measured with A-ultrasonic technology. Then the data were input into the optical design software -ZEMAX and the crystalline lens's shapes were optimized with the aberration as the merit function. The individual eye model, which has the same wavefront aberrations with the real eye, is established.

Paper Details

Date Published: 30 August 2005
PDF: 9 pages
Proc. SPIE 5894, Advanced Wavefront Control: Methods, Devices, and Applications III, 589408 (30 August 2005); doi: 10.1117/12.612819
Show Author Affiliations
Zhao-Qi Wang, Nankai Univ. (China)
Key Lab. of Opto-electronic Infromation Science and Technology (China)
Huan-Qing Guo, Nankai Univ. (China)
Key Lab. of Opto-electronic Infromation Science and Technology (China)


Published in SPIE Proceedings Vol. 5894:
Advanced Wavefront Control: Methods, Devices, and Applications III
Mark T. Gruneisen; John D. Gonglewski; Michael K. Giles, Editor(s)

© SPIE. Terms of Use
Back to Top