Retinal spot size with wavelength

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

doi:10.1117/12.275470

16 June 1997 Retinal spot size with wavelength

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

Author Affiliations +

Proceedings Volume 2975, Laser-Tissue Interaction VIII; (1997) https://doi.org/10.1117/12.275470
Event: BiOS '97, Part of Photonics West, 1997, San Jose, CA, United States

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.

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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, and Clarence P. Cain "Retinal spot size with wavelength", Proc. SPIE 2975, Laser-Tissue Interaction VIII, (16 June 1997); https://doi.org/10.1117/12.275470

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