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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

  • Editor: Stephen A. Burns
  • Vol. 26, Iss. 4 — Apr. 1, 2009
  • pp: 1035–1048

Zernike radial slope polynomials for wavefront reconstruction and refraction

Jayoung Nam, Larry N. Thibos, and D. Robert Iskander  »View Author Affiliations


JOSA A, Vol. 26, Issue 4, pp. 1035-1048 (2009)
http://dx.doi.org/10.1364/JOSAA.26.001035


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Abstract

Ophthalmic wavefront sensors typically measure wavefront slope, from which wavefront phase is reconstructed. We show that ophthalmic prescriptions (in power-vector format) can be obtained directly from slope measurements without wavefront reconstruction. This is achieved by fitting the measurement data with a new set of orthonormal basis functions called Zernike radial slope polynomials. Coefficients of this expansion can be used to specify the ophthalmic power vector using explicit formulas derived by a variety of methods. Zernike coefficients for wavefront error can be recovered from the coefficients of radial slope polynomials, thereby offering an alternative way to perform wavefront reconstruction.

© 2009 Optical Society of America

OCIS Codes
(330.5370) Vision, color, and visual optics : Physiological optics
(330.7326) Vision, color, and visual optics : Visual optics, modeling

ToC Category:
Vision, Color, and Visual Optics

History
Original Manuscript: July 11, 2008
Revised Manuscript: January 15, 2009
Manuscript Accepted: February 5, 2009
Published: March 26, 2009

Virtual Issues
Vol. 4, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Jayoung Nam, Larry N. Thibos, and D. Robert Iskander, "Zernike radial slope polynomials for wavefront reconstruction and refraction," J. Opt. Soc. Am. A 26, 1035-1048 (2009)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-26-4-1035

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