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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

  • Editor: Franco Gori
  • Vol. 29, Iss. 7 — Jul. 1, 2012
  • pp: 1293–1299

Comparison between an objective and a psychophysical method for the evaluation of intraocular light scattering

Pablo Alejandro Barrionuevo, Elisa Margarita Colombo, Meritxell Vilaseca, Jaume Pujol, and Luis Alberto Issolio  »View Author Affiliations


JOSA A, Vol. 29, Issue 7, pp. 1293-1299 (2012)
http://dx.doi.org/10.1364/JOSAA.29.001293


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Abstract

In this study we present the comparison of the performance of two systems to measure intraocular scattering. Measurements were made by using a psychophysical system based on a brightness comparison method that provides a glare index and a physical system based on the double-pass technique, which gives an objective scatter index by measuring the optical quality of the eye. Three external diffuser filters that simulated different grades of intraocular scattering were used in subjects with normal vision. The two measured indexes showed a graded rise with increasing level of scattering. The discrimination ability obtained for both systems showed that they were able to distinguish among conditions ranging from normal to early cataracts.

© 2012 Optical Society of America

OCIS Codes
(290.5820) Scattering : Scattering measurements
(330.5370) Vision, color, and visual optics : Physiological optics
(330.5510) Vision, color, and visual optics : Psychophysics

ToC Category:
Scattering

History
Original Manuscript: November 4, 2011
Revised Manuscript: May 7, 2012
Manuscript Accepted: May 7, 2012
Published: June 13, 2012

Virtual Issues
Vol. 7, Iss. 9 Virtual Journal for Biomedical Optics

Citation
Pablo Alejandro Barrionuevo, Elisa Margarita Colombo, Meritxell Vilaseca, Jaume Pujol, and Luis Alberto Issolio, "Comparison between an objective and a psychophysical method for the evaluation of intraocular light scattering," J. Opt. Soc. Am. A 29, 1293-1299 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-7-1293


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