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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Franco Gori
  • Vol. 27, Iss. 7 — Jul. 1, 2010
  • pp: 1561–1574

Wavelength adjustment using an eye model from aberrometry data

Jayoung Nam, Jacob Rubinstein, and Larry Thibos  »View Author Affiliations

JOSA A, Vol. 27, Issue 7, pp. 1561-1574 (2010)

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We developed a method to convert aberrometry data obtained in one wavelength to the corresponding data in another wavelength using an eye model. A single map of aberrometry data is used to construct a free-form one-surface eye model. A general algorithm for the surface construction is described and implemented for real aberrometry data. Our method can handle varying conjugate distances of the measurement plane of the aberrometer and can also manage the chief ray prism that may be present. The algorithm is validated with the aid of an artificial plastic eye. The wavefronts in different wavelengths are compared through the Zernike analysis not only for lower-order aberrations, but also for higher-order aberrations. The results show that the changes of the Zernike aberration coefficients due to wavelengths are non-uniform. The defocus term has the highest effect from wavelength changes, which is consistent with the previous literature. Our method is compared with two approximate semi-analytical algorithms. The wavelength adjustments from a multi-surface eye model are contrasted with our method. We prove analytically that the conventional method of wavelength adjustment is based on paraxial analysis. In addition, we provide a method of finding the chief ray using back-projection in some cases and discuss different meanings of prism.

© 2010 Optical Society of America

OCIS Codes
(330.0330) Vision, color, and visual optics : Vision, color, and visual optics
(330.5370) Vision, color, and visual optics : Physiological optics
(330.7327) Vision, color, and visual optics : Visual optics, ophthalmic instrumentation

ToC Category:
Vision, Color, and Visual Optics

Original Manuscript: November 4, 2009
Revised Manuscript: March 28, 2010
Manuscript Accepted: April 22, 2010
Published: June 3, 2010

Virtual Issues
Vol. 5, Iss. 11 Virtual Journal for Biomedical Optics

Jayoung Nam, Jacob Rubinstein, and Larry Thibos, "Wavelength adjustment using an eye model from aberrometry data," J. Opt. Soc. Am. A 27, 1561-1574 (2010)

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