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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Vol. 16, Iss. 9 — Sep. 1, 1999
  • pp: 2103–2111

Mathematical modeling of retinal birefringence scanning

David G. Hunter, Julie C. Sandruck, Soma Sau, Saurabh N. Patel, and David L. Guyton  »View Author Affiliations

JOSA A, Vol. 16, Issue 9, pp. 2103-2111 (1999)

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Retinal birefringence scanning (RBS) is a new technique that is used to detect the fixation of the eye remotely and noninvasively. The method is based on analysis of polarization changes induced by the retina. In this study, the principles of RBS were mathematically modeled to facilitate a better understanding of the origins of the signals obtained. Stokes vector analysis and Mueller matrix multiplication were augmented with Poincaré sphere representation. The cornea was modeled as a linear retarder. The foveal area was modeled as a radially symmetric birefringent medium. The model accurately predicted the frequency and phase of RBS signals obtained during central and paracentral fixation. The signal that indicates central fixation during RBS likely results from a combination of the radial birefringence of the Henle fibers and the overlying corneal birefringence.

© 1999 Optical Society of America

OCIS Codes
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
(120.5410) Instrumentation, measurement, and metrology : Polarimetry
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices
(170.4470) Medical optics and biotechnology : Ophthalmology
(330.4300) Vision, color, and visual optics : Vision system - noninvasive assessment

Original Manuscript: May 3, 1999
Manuscript Accepted: May 7, 1999
Published: September 1, 1999

David G. Hunter, Julie C. Sandruck, Soma Sau, Saurabh N. Patel, and David L. Guyton, "Mathematical modeling of retinal birefringence scanning," J. Opt. Soc. Am. A 16, 2103-2111 (1999)

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