Simultaneous drift, microsaccades, and ocular microtremor measurement from a single noncontact far-field optical sensor

James P. Ryle; Brian Vohnsen; John T. Sheridan

doi:10.1117/1.JBO.20.2.027004

12 February 2015 Simultaneous drift, microsaccades, and ocular microtremor measurement from a single noncontact far-field optical sensor

James P. Ryle, Brian Vohnsen, John T. Sheridan

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Journal of Biomedical Optics, Vol. 20, Issue 2, 027004 (February 2015). https://doi.org/10.1117/1.JBO.20.2.027004

Abstract

We report on the combined far-field measurement of the three involuntary eye movements, drift, microsaccades, and ocular microtremor (OMT), using a noncontact far-field optical method. We review the significance of the smallest and least measured, and thus least understood, of the three, OMT. Using modern digital imaging techniques, we perform detailed analysis, present experimental results, and examine the extracted parameters using a noncontact far-field sensor. For the first time, in vivo noncontact measurements of all three fixational in-plane movements of the human eye are reported, which simultaneously provide both the horizontal (left-right) and vertical (up-down) displacement results.

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James P. Ryle, Brian Vohnsen, and John T. Sheridan "Simultaneous drift, microsaccades, and ocular microtremor measurement from a single noncontact far-field optical sensor," Journal of Biomedical Optics 20(2), 027004 (12 February 2015). https://doi.org/10.1117/1.JBO.20.2.027004

Published: 12 February 2015

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