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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 15, Iss. 9 — Sep. 1, 1998
  • pp: 2449–2456

Measurement of the wave-front aberration of the eye by a fast psychophysical procedure

J. C. He, S. Marcos, R. H. Webb, and S. A. Burns  »View Author Affiliations


JOSA A, Vol. 15, Issue 9, pp. 2449-2456 (1998)
http://dx.doi.org/10.1364/JOSAA.15.002449


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Abstract

We used a fast psychophysical procedure to determine the wave-front aberrations of the human eye in vivo. We measured the angular deviation of light rays entering the eye at different pupillary locations by aligning an image of a point source entering the pupil at different locations to the image of a fixation cross entering the pupil at a fixed location. We fitted the data to a Zernike series to reconstruct the wave-front aberrations of the pupil. With this technique the repeatability of the measurement of the individual coefficients was 0.019 µm. The standard deviation of the overall wave-height estimation across the pupil is less than 0.3 µm. Since this technique does not require the administration of pharmacological agents to dilate the pupil, we were able to measure the changes in the aberrations of the eye during accommodation. We found that administration of even a mild dilating agent causes a change in the aberration structure of the eye.

© 1998 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(330.5370) Vision, color, and visual optics : Physiological optics
(330.5510) Vision, color, and visual optics : Psychophysics
(330.7310) Vision, color, and visual optics : Vision

History
Original Manuscript: January 9, 1998
Revised Manuscript: March 25, 1998
Manuscript Accepted: April 2, 1998
Published: September 1, 1998

Citation
J. C. He, S. Marcos, R. H. Webb, and S. A. Burns, "Measurement of the wave-front aberration of the eye by a fast psychophysical procedure," J. Opt. Soc. Am. A 15, 2449-2456 (1998)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-15-9-2449


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