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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 32 — Nov. 10, 2009
  • pp: 6324–6331

Systematic errors analysis for a large dynamic range aberrometer based on aberration theory

Peng Wu, Sheng Liu, Edward DeHoog, and Jim Schwiegerling  »View Author Affiliations

Applied Optics, Vol. 48, Issue 32, pp. 6324-6331 (2009)

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In Ref. [1], it was demonstrated that the significant systematic errors of a type of large dynamic range aberrometer are strongly related to the power error (defocus) in the input wavefront. In this paper, a generalized theoretical analysis based on vector aberration theory is presented, and local shift errors of the SH spot pattern as a function of the lenslet position and the local wavefront tilt over the corresponding lenslet are derived. Three special cases, a spherical wavefront, a crossed cylindrical wavefront, and a cylindrical wavefront, are analyzed and the possibly affected Zernike terms in the wavefront reconstruction are investigated. The simulation and experimental results are illustrated to verify the theoretical predictions.

© 2009 Optical Society of America

OCIS Codes
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices
(330.4460) Vision, color, and visual optics : Ophthalmic optics and devices
(330.7327) Vision, color, and visual optics : Visual optics, ophthalmic instrumentation

ToC Category:
Medical Optics and Biotechnology

Original Manuscript: September 2, 2009
Manuscript Accepted: October 6, 2009
Published: November 6, 2009

Virtual Issues
Vol. 4, Iss. 13 Virtual Journal for Biomedical Optics

Peng Wu, Sheng Liu, Edward DeHoog, and Jim Schwiegerling, "Systematic errors analysis for a large dynamic range aberrometer based on aberration theory," Appl. Opt. 48, 6324-6331 (2009)

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