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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 21 — Oct. 11, 2010
  • pp: 22364–22376

The entrance pupil of the human eye: a three-dimensional model as a function of viewing angle

Cathleen Fedtke, Fabrice Manns, and Arthur Ho  »View Author Affiliations


Optics Express, Vol. 18, Issue 21, pp. 22364-22376 (2010)
http://dx.doi.org/10.1364/OE.18.022364


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Abstract

Precise peripheral ocular measurements have become important in vision research. These measurements are influenced by the shape and position of the peripherally observed entrance pupil. A long-held assumption is that its apparent shape is elliptical and is optically centered in its position. Our three-dimensional model shows that as viewing angle increases, the entrance pupil moves forward, tilts and curves towards the observer’s direction. Moreover, the tangential pupil size narrows and exhibits asymmetric distortions. Consequently, its shape is non-elliptical and its geometric mid-point departs from the optical center. These findings may have implications on the accuracy of peripheral ocular measurements.

© 2010 OSA

OCIS Codes
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices
(330.7326) Vision, color, and visual optics : Visual optics, modeling

ToC Category:
Vision, Color, and Visual Optics

History
Original Manuscript: July 19, 2010
Revised Manuscript: September 23, 2010
Manuscript Accepted: September 24, 2010
Published: October 7, 2010

Virtual Issues
Vol. 5, Iss. 14 Virtual Journal for Biomedical Optics

Citation
Cathleen Fedtke, Fabrice Manns, and Arthur Ho, "The entrance pupil of the human eye: a three-dimensional model as a function of viewing angle," Opt. Express 18, 22364-22376 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-21-22364


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