Purkinje imaging system to measure anterior segment scattering in the human eye
Optics Letters, Vol. 32, Issue 23, pp. 3447-3449 (2007)
http://dx.doi.org/10.1364/OL.32.003447
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Abstract
We present an instrument based on Purkinje imaging that permits the objective measurement of the amount of scattering associated with the eye’s anterior segment, avoiding the contribution from the retina. The experimental system records the fourth Purkinje image, and adequate processing is used to compute a parameter that quantifies the scattering. The method was first tested in an artificial eye and later in normal young eyes wearing customized contact lenses that induced different amounts of scatter. We were able to detect scattering increments, which indicates that this technique may be used as an objective tool to quantify the level of scattering in the anterior segment of the living human eye. The future use of this technique in clinical environments might help to estimate the level of corneal haze in eyes undergoing refractive surgery or/and scattering within the lens during cataract development.
© 2007 Optical Society of America
OCIS Codes
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.4470) Medical optics and biotechnology : Ophthalmology
(290.5820) Scattering : Scattering measurements
(330.5370) Vision, color, and visual optics : Physiological optics
ToC Category:
Medical Optics and Biotechnology
History
Original Manuscript: August 28, 2007
Manuscript Accepted: October 2, 2007
Published: November 28, 2007
Virtual Issues
Vol. 3, Iss. 1 Virtual Journal for Biomedical Optics
Citation
Juan M. Bueno, Dirk De Brouwere, Harilaos Ginis, Ioannis Sgouros, and Pablo Artal, "Purkinje imaging system to measure anterior segment scattering in the human eye," Opt. Lett. 32, 3447-3449 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-23-3447
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