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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. 21, Iss. 3 — Mar. 1, 2004
  • pp: 355–359

Anterior corneal and internal contributions to peripheral aberrations of human eyes

David A. Atchison  »View Author Affiliations


JOSA A, Vol. 21, Issue 3, pp. 355-359 (2004)
http://dx.doi.org/10.1364/JOSAA.21.000355


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Abstract

Anterior corneal and internal component contributions to overall peripheral aberrations of five human eyes were determined, based on corneal topography and overall aberration measurements. Anterior corneal position and orientation (tilt) were referenced to the line of sight. Ray tracing was performed through the anterior cornea for 6-mm-diameter pupils at angles out to 40° in both the temporal and the nasal visual fields. In general, both component and overall Zernike aberrations were greater for the nasal than for the temporal visual field. In general, the anterior corneal aberration components were considerably higher than the overall aberrations across the visual field and were balanced to a considerable degree by the internal ocular aberration components. The component and overall levels of Zernike third-order aberrations showed linear trends away from the fixation axis, and the component levels of Zernike fourth-order aberrations showed quadratic trends away from the fixation axis. The second-order, but not higher-order, aberration components were susceptible to the choice of image radius of curvature, while disregarding corneal position and orientation affected second- and higher-order aberration components.

© 2004 Optical Society of America

OCIS Codes
(080.3620) Geometric optics : Lens system design
(330.4460) Vision, color, and visual optics : Ophthalmic optics and devices
(330.5370) Vision, color, and visual optics : Physiological optics

History
Original Manuscript: August 31, 2003
Revised Manuscript: November 17, 2003
Manuscript Accepted: November 20, 2003
Published: March 1, 2004

Citation
David A. Atchison, "Anterior corneal and internal contributions to peripheral aberrations of human eyes," J. Opt. Soc. Am. A 21, 355-359 (2004)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-21-3-355

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