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Journal of Biomedical Optics • Open Access • new

Combined high contrast and wide field of view in the scanning laser ophthalmoscope through dual detection of light paths
Author(s): Guillem Carles; Gonzalo Muyo; Jano van Hemert; Andrew R. Harvey

Paper Abstract

We demonstrate a multimode detection system in a scanning laser ophthalmoscope (SLO) that enables simultaneous operation in confocal, indirect, and direct modes to permit an agile trade between image contrast and optical sensitivity across the retinal field of view to optimize the overall imaging performance, enabling increased contrast in very wide-field operation. We demonstrate the method on a wide-field SLO employing a hybrid pinhole at its image plane, to yield a twofold increase in vasculature contrast in the central retina compared to its conventional direct mode while retaining high-quality imaging across a wide field of the retina, of up to 200 deg and 20    μ m on-axis resolution.

Paper Details

Date Published: 2 November 2017
PDF: 10 pages
J. Biomed. Opt. 22(11) 116002 doi: 10.1117/1.JBO.22.11.116002
Published in: Journal of Biomedical Optics Volume 22, Issue 11
Show Author Affiliations
Guillem Carles, Univ. of Glasgow (United Kingdom)
Gonzalo Muyo, Optos plc (United Kingdom)
Jano van Hemert, Optos plc (United Kingdom)
Andrew R. Harvey, Univ. of Glasgow (United Kingdom)

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