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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 36, Iss. 23 — Dec. 1, 2011
  • pp: 4707–4709

Cataract diagnosis by measurement of backscattered light

Eric R. Tkaczyk, Tiina Mauring, Mihkel Pajusalu, Agu Anijalg, Alan H. Tkaczyk, Pait Teesalu, Jaak Kikas, and Koit Mauring  »View Author Affiliations


Optics Letters, Vol. 36, Issue 23, pp. 4707-4709 (2011)
http://dx.doi.org/10.1364/OL.36.004707


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Abstract

We present a portable optical cataract assessment technology which measures with a circular photodetector the fraction of light scattered backwards by the human eye lens when illuminated by a laser diode. As our signal arises directly from the fundamental pathology—increased scattering in the lens—it directly assesses cataract extent and progression. Initial clinical results in undilated human eyes show device reading correlations in agreement with clinical examination and Scheimpflug photography.

© 2011 Optical Society of America

OCIS Codes
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(170.1610) Medical optics and biotechnology : Clinical applications
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices
(170.4470) Medical optics and biotechnology : Ophthalmology
(170.4580) Medical optics and biotechnology : Optical diagnostics for medicine

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: September 1, 2011
Revised Manuscript: October 29, 2011
Manuscript Accepted: October 29, 2011
Published: December 1, 2011

Virtual Issues
Vol. 7, Iss. 2 Virtual Journal for Biomedical Optics

Citation
Eric R. Tkaczyk, Tiina Mauring, Mihkel Pajusalu, Agu Anijalg, Alan H. Tkaczyk, Pait Teesalu, Jaak Kikas, and Koit Mauring, "Cataract diagnosis by measurement of backscattered light," Opt. Lett. 36, 4707-4709 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-23-4707


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References

  1. G. B. Benedek, Invest. Ophthalmol. Visual Sci. 38, 1911(1997).
  2. L. Chylack, in Albert: Albert & Jakobiec’s Principles & Practice of Ophthalmology, 3rd ed, D.M.Albert, J.W.Miller, D.T.Azar, and B.A.Blodi, eds. (Saunders, 2008), ch. 108.
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  7. D. Grewal, G. Brar, and S. Grewal, Ophthalmol. Annu. 116, 1436 (2009).

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