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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. 16, Iss. 9 — Sep. 1, 1999
  • pp: 2069–2078

Effect of aging on the monochromatic aberrations of the human eye

Richard I. Calver, Michael J. Cox, and David B. Elliott  »View Author Affiliations


JOSA A, Vol. 16, Issue 9, pp. 2069-2078 (1999)
http://dx.doi.org/10.1364/JOSAA.16.002069


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Abstract

We measured the contrast sensitivity (CS) of a group of older subjects through natural pupils and compared the results with those from a group of younger subjects. We also measured each subject’s monochromatic ocular wave-front aberrations using a crossed-cylinder aberroscope and calculated their modulation transfer functions (MTF’s) and root-mean-squared (RMS) wave-front aberrations for fixed pupil diameters of 4 mm and 6 mm and for a natural pupil diameter. The CS at a natural pupil diameter and the MTF computed for a fixed pupil diameter were found to be significantly poorer for the older group than for the younger group. However, the older group showed very similar MTF’s and significantly smaller RMS wave-front aberrations compared with the younger group at their natural pupil diameters, owing to the effects of age-related miosis. These results suggest that although monochromatic ocular wave-front aberrations for a given pupil size increase with age, the reduction in CS with age is not due to this increase.

© 1999 Optical Society of America

OCIS Codes
(080.1010) Geometric optics : Aberrations (global)
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices
(330.4300) Vision, color, and visual optics : Vision system - noninvasive assessment
(330.4460) Vision, color, and visual optics : Ophthalmic optics and devices

History
Original Manuscript: January 25, 1999
Revised Manuscript: April 29, 1999
Manuscript Accepted: April 29, 1999
Published: September 1, 1999

Citation
Richard I. Calver, Michael J. Cox, and David B. Elliott, "Effect of aging on the monochromatic aberrations of the human eye," J. Opt. Soc. Am. A 16, 2069-2078 (1999)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-16-9-2069

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