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Journal of Biomedical Optics

New Laser Doppler System for Examining Optic Nerve Head Circulation
Author(s): Akitoshi Yoshida; Gilbert T. Feke; Gilbert D. Feke; J. Wallace McMeel
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Paper Abstract

A new laser Doppler system for the noninvasive examination of the human optic nerve head microcirculation is described. The electro-optical component of the system consists of a retinal camera modified with laser input optics and a fiber optic light detection system for collection of the Doppler-shifted scattered light. Data acquisition is carried out in real time under computer control. Automated analysis of the data provides a quantitative measure of the speed of blood cells flowing through the capillaries of the optic nerve head. Unlike previous systems, this system provides results within a few minutes following data acquisition. It is thus appropriate for use in a clinical setting. Analysis of multiple measurements on a patient shows a coefficient of variation of 8.9%.

Paper Details

Date Published: 1 October 1998
PDF: 5 pages
J. Biomed. Opt. 3(4) doi: 10.1117/1.429849
Published in: Journal of Biomedical Optics Volume 3, Issue 4
Show Author Affiliations
Akitoshi Yoshida, Asahikawa Medical College (Japan)
Gilbert T. Feke, Schepens Eye Institute (United States)
Gilbert D. Feke, Yale Univ. (United States)
J. Wallace McMeel, Schepens Eye Research Inst. (United States)

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