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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 32 — Nov. 10, 2009
  • pp: 6376–6380

Systematic error of a large dynamic range aberrometer

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

Applied Optics, Vol. 48, Issue 32, pp. 6376-6380 (2009)

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Shack–Hartmann aberrometers are routinely used for measuring ocular aberrations. In one configuration, the intermediate images of the Shack–Hartmann spots formed by the lenslet array are relayed by an imaging lens onto a sensor. A systematic introduction of spherical aberration that is strongly related to the power error (defocus) of the incident wavefront is observed in this configuration. We found that the largest component of this error is induced by the pupil aberration of the imaging relay lens. Some simulations and experimental results are demonstrated.

© 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: June 25, 2009
Revised Manuscript: October 7, 2009
Manuscript Accepted: October 21, 2009
Published: November 9, 2009

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

Peng Wu, Edward DeHoog, and Jim Schwiegerling, "Systematic error of a large dynamic range aberrometer," Appl. Opt. 48, 6376-6380 (2009)

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