7 May 1996 Subnanosecond single laser pulse minimum-visible-lesion studies in the near infrared
Author Affiliations +
Lacking established national laser safety standards for sub-nanosecond, single pulse laser systems operating in the visible to near infrared spectral regions has resulted in research efforts designed to define the risks associated with human ocular exposure. The bulk of this work has been focused on visible wavelength laser pulses and resulting retinal threshold damage. We report threshold measurements for Minimum Visible Lesions (MVL) at the retina for picosecond (ps) laser pulses in Macaca Mulatta eyes using near infrared wavelengths (80 ps and 1064 nm). The 50% probability for damage (ED50) dosages are calculated for 1 hour and 24 hour post exposures using the SAS probit analysis. The MVL ED50 threshold and the fiducial limits at the 95% confidence level were found to be 4.16 (3.00 - 5.77) microjoules ((mu) J). Fluorescein angiography (FA) was accomplished at both 1 hour and 24 hour post exposure, however the analysis for FA is currently underway and results will not be reported here.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
William P. Roach, Cheryl Dawn DiCarlo, Gary D. Noojin, David J. Stolarski, Rodney E. Amnotte, Val Caruthers, Benjamin A. Rockwell, and Clarence P. Cain "Subnanosecond single laser pulse minimum-visible-lesion studies in the near infrared", Proc. SPIE 2681, Laser-Tissue Interaction VII, (7 May 1996); doi: 10.1117/12.239597; https://doi.org/10.1117/12.239597


High power lasers in the 1.3 to 1.4 um...
Proceedings of SPIE (May 16 2001)
Safe use of ultrashort lasers
Proceedings of SPIE (June 03 1999)
What is eye safe?
Proceedings of SPIE (March 31 1991)

Back to Top