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Proceedings Paper

Low-cost, high-resolution scanning laser ophthalmoscope for the clinical environment
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Paper Abstract

Researchers have sought to gain greater insight into the mechanisms of the retina and the optic disc at high spatial resolutions that would enable the visualization of small structures such as photoreceptors and nerve fiber bundles. The sources of retinal image quality degradation are aberrations within the human eye, which limit the achievable resolution and the contrast of small image details. To overcome these fundamental limitations, researchers have been applying adaptive optics (AO) techniques to correct for the aberrations. Today, deformable mirror based adaptive optics devices have been developed to overcome the limitations of standard fundus cameras, but at prices that are typically unaffordable for most clinics. In this paper we demonstrate a clinically viable fundus camera with auto-focus and astigmatism correction that is easy to use and has improved resolution. We have shown that removal of low-order aberrations results in significantly better resolution and quality images. Additionally, through the application of image restoration and super-resolution techniques, the images present considerably improved quality. The improvements lead to enhanced visualization of retinal structures associated with pathology.

Paper Details

Date Published: 2 March 2010
PDF: 12 pages
Proc. SPIE 7550, Ophthalmic Technologies XX, 75501G (2 March 2010); doi: 10.1117/12.846365
Show Author Affiliations
P. Soliz, VisionQuest Biomedical, LLC (United States)
A. Larichev, Moscow State Univ. (Russian Federation)
G. Zamora, VisionQuest Biomedical, LLC (United States)
S. Murillo, VisionQuest Biomedical, LLC (United States)
E. S. Barriga, VisionQuest Biomedical, LLC (United States)

Published in SPIE Proceedings Vol. 7550:
Ophthalmic Technologies XX
Fabrice Manns; Per G. Söderberg; Arthur Ho, Editor(s)

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