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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. 19, Iss. 1 — Jan. 1, 2002
  • pp: 173–184

Decline of photopic multifocal electroretinogram responses with age is due primarily to preretinal optical factors

Brad Fortune and Chris A. Johnson  »View Author Affiliations


JOSA A, Vol. 19, Issue 1, pp. 173-184 (2002)
http://dx.doi.org/10.1364/JOSAA.19.000173


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Abstract

Age-related changes in photopic retinal function were evaluated topographically with the multifocal electroretinogram (mfERG). Thirty-two subjects between the ages of 16 and 69 participated. There was a strong dependence on age for all mfERG response measures that was strongest for the group of central retinal responses (i.e., within 5 deg eccentricity) and approximately equal for responses between 5 and 20 deg. After adjustment for crystalline lens optical density and pupil diameter, significant effects of age were limited to central first-order (i.e., within 5 deg) and second-order response kernels. Simulation studies support an optical basis for the observed age-related changes. It is concluded that mfERG changes between the ages of 20 and 70 are due predominantly to preretinal optical factors.

© 2002 Optical Society of America

OCIS Codes
(330.0330) Vision, color, and visual optics : Vision, color, and visual optics
(330.4270) Vision, color, and visual optics : Vision system neurophysiology
(330.4300) Vision, color, and visual optics : Vision system - noninvasive assessment
(330.4460) Vision, color, and visual optics : Ophthalmic optics and devices
(330.5370) Vision, color, and visual optics : Physiological optics
(330.7310) Vision, color, and visual optics : Vision

History
Original Manuscript: February 6, 2001
Revised Manuscript: July 13, 2001
Manuscript Accepted: July 13, 2001
Published: January 1, 2002

Citation
Brad Fortune and Chris A. Johnson, "Decline of photopic multifocal electroretinogram responses with age is due primarily to preretinal optical factors," J. Opt. Soc. Am. A 19, 173-184 (2002)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-19-1-173

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