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Proceedings Paper

Automated PRL measurements using a confocal laser ophthalmoscope
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Paper Abstract

Ocular motility generated by various fixation strategies show a lower propensity to visit laser damaged retinal areas as compared to non-laser damaged sites. This selectivity provides a non-invasive methodology for characterizing retinal pathology by mapping eye movement visitation under various visual function fixation strategies. Ocular motor techniques for imaging eye movement maps of normal and damaged retinal regions are demonstrated with reference to retinal target location at the retina. Eye movement data digitized from a contrast sensitivity task provided video data of eye movement fixation patterns simultaneously with retmal location oftarget placement dunng periods of visual fixation required in a Landolt ring contrast sensitivity task. These data were digitized with specialized algorithms that linked target location with retmal morphology and pathology In one patient with central macular retmal damage, retmal based maps demonstrated strong consistency with measurements made with nonretina1 higher resolution Purkinje eye movement apparatus. Such eye movement maps differed primarily eye movement density within a given area but were generally comparable with respect focal areas mapped in retinal space. These data suggest that lower resolution video based imaging can provide a non-invasive assessment oflaser induced retinal damage.

Paper Details

Date Published: 17 May 2001
PDF: 10 pages
Proc. SPIE 4246, Laser and Noncoherent Light Ocular Effects: Epidemiology, Prevention, and Treatment, (17 May 2001); doi: 10.1117/12.426721
Show Author Affiliations
Steven F. Barrett, Univ. of Wyoming (United States)
Harry Zwick, Walter Reed Army Institute of Research (United States)


Published in SPIE Proceedings Vol. 4246:
Laser and Noncoherent Light Ocular Effects: Epidemiology, Prevention, and Treatment
Bruce E. Stuck; Michael Belkin, Editor(s)

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