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Proceedings Paper

Hybrid digital/analog retinal-tracking system
Author(s): Steven F. Barrett; Peter W. de Graaf; Cameron H. G. Wright
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Paper Abstract

A system for robotically assisted retinal surgery has been developed to rapidly and safely place lesions on the retina for photocoagulation therapy. This system provides real- time, motion stabilized lesion placement for typical irradiation times of 100 ms. The system consists of three main subsystems: a global, digital-based tracking subsystem; a fast, local analog tracking subsystem in previous SPIE presentations. This paper concentrates on the development of the confocal reflectance subsystem and its integration into the overall photocoagulation system. Specifically, our goal was to use measurable lesion reflectance growth curve parameters to develop a noninvasive method to infer lesion depth. This method will allow dynamic control of laser dosimetry to provide similar lesions across the non-uniform retinal surface.

Paper Details

Date Published: 3 May 2000
PDF: 10 pages
Proc. SPIE 3911, Biomedical Diagnostic, Guidance, and Surgical-Assist Systems II, (3 May 2000); doi: 10.1117/12.384897
Show Author Affiliations
Steven F. Barrett, Univ. of Wyoming (United States)
Peter W. de Graaf, U.S. Air Force Academy (United States)
Cameron H. G. Wright, U.S. Air Force Academy (United States)


Published in SPIE Proceedings Vol. 3911:
Biomedical Diagnostic, Guidance, and Surgical-Assist Systems II
Tuan Vo-Dinh; Warren S. Grundfest; David A. Benaron, Editor(s)

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