Ocular safety limits for 1030nm femtosecond laser cataract surgery

Jenny Wang; Christopher Sramek; Yannis M. Paulus; Daniel Lavinsky; Georg Schuele; Dan Anderson; David Dewey; Daniel V. Palanker

doi:10.1117/12.2001895

26 March 2013 Ocular safety limits for 1030nm femtosecond laser cataract surgery

Jenny Wang, Christopher Sramek, Yannis M. Paulus, Daniel Lavinsky, Georg Schuele, Dan Anderson, David Dewey, Daniel V. Palanker

Author Affiliations +

Proceedings Volume 8567, Ophthalmic Technologies XXIII; 856708 (2013) https://doi.org/10.1117/12.2001895
Event: SPIE BiOS, 2013, San Francisco, California, United States

Abstract

Application of femtosecond lasers to cataract surgery has added unprecedented precision and reproducibility but ocular safety limits for the procedure are not well-quantified. We present an analysis of safety during laser cataract surgery considering scanned patterns, reduced blood perfusion, and light scattering on residual bubbles formed during laser cutting. Experimental results for continuous-wave 1030 nm irradiation of the retina in rabbits are used to calibrate damage threshold temperatures and perfusion rate for our computational model of ocular heating. Using conservative estimates for each safety factor, we compute the limits of the laser settings for cataract surgery that optimize procedure speed within the limits of retinal safety.

Citation Download Citation

Jenny Wang, Christopher Sramek, Yannis M. Paulus, Daniel Lavinsky, Georg Schuele, Dan Anderson, David Dewey, and Daniel V. Palanker "Ocular safety limits for 1030nm femtosecond laser cataract surgery", Proc. SPIE 8567, Ophthalmic Technologies XXIII, 856708 (26 March 2013); https://doi.org/10.1117/12.2001895

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