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Proceedings Paper

Retinal spot size with wavelength
Author(s): Benjamin A. Rockwell; Daniel X. Hammer; Paul K. Kennedy; Rodney E. Amnotte; Brent Eilert; Jeffrey J. Druessel; Dale J. Payne; Shana L. Phillips; David J. Stolarski; Gary D. Noojin; Robert J. Thomas; Clarence P. Cain
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Paper Abstract

We have made an indirect in-vivo determination of spot size focusing in the rhesus monkey model. Measurement of the laser induced breakdown threshold both in-vitro and in-vivo allow correlation and assignment of a spot size after focusing through the living eye. We discuss and analyze the results and show how trends in minimum visible lesion data should be assessed in light of chromatic aberration. National laser safety standards are based on minimal visual lesion (MVL) threshold studies in different animal models. The energy required for a retinal lesion depends upon may parameters including wavelength and retinal spot size. We attempt to explain trends in reported MVL threshold studies using a model of the eye which allows calculation of changes in retinal spot size due to chromatic aberration.

Paper Details

Date Published: 16 June 1997
PDF: 7 pages
Proc. SPIE 2975, Laser-Tissue Interaction VIII, (16 June 1997); doi: 10.1117/12.275470
Show Author Affiliations
Benjamin A. Rockwell, Air Force Armstrong Lab. (United States)
Daniel X. Hammer, Air Force Armstrong Lab. (United States)
Paul K. Kennedy, Air Force Armstrong Lab. (United States)
Rodney E. Amnotte, Air Force Armstrong Lab. (United States)
Brent Eilert, Air Force Armstrong Lab. (United States)
Jeffrey J. Druessel, Air Force Armstrong Lab. (United States)
Dale J. Payne, Air Force Armstrong Lab. (United States)
Shana L. Phillips, Air Force Armstrong Lab. (United States)
David J. Stolarski, TASC (United States)
Gary D. Noojin, TASC (United States)
Robert J. Thomas, TASC (United States)
Clarence P. Cain, TASC (United States)


Published in SPIE Proceedings Vol. 2975:
Laser-Tissue Interaction VIII
Steven L. Jacques, Editor(s)

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