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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. 20, Iss. 11 — Nov. 1, 2003
  • pp: 2010–2015

Optimal pupil size in the human eye for axial resolution

William J. Donnelly, III and Austin Roorda  »View Author Affiliations


JOSA A, Vol. 20, Issue 11, pp. 2010-2015 (2003)
http://dx.doi.org/10.1364/JOSAA.20.002010


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Abstract

A computer model that incorporates the monochromatic aberrations of the eye is used to determine the optimal pupil size for axial and lateral resolution as it applies to retinal imaging instruments such as the confocal scanning laser ophthalmoscope. The optimal pupil size for axial resolution, based on the aberrations of 15 subjects, is 4.30 mm±1.19 mm standard deviation (sd), which is larger than that for lateral resolution [2.46 mm±0.66 mm (sd)]. When small confocal pinholes are used, the maximum detected light is obtained with a pupil size of 4.90 mm±1.04 mm sd. It is recommended to use larger pupil sizes in imaging applications where axial resolution is desired.

© 2003 Optical Society of America

OCIS Codes
(330.5370) Vision, color, and visual optics : Physiological optics
(330.6130) Vision, color, and visual optics : Spatial resolution

History
Original Manuscript: January 29, 2003
Revised Manuscript: June 24, 2003
Manuscript Accepted: June 24, 2003
Published: November 1, 2003

Citation
William J. Donnelly and Austin Roorda, "Optimal pupil size in the human eye for axial resolution," J. Opt. Soc. Am. A 20, 2010-2015 (2003)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-20-11-2010

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