Laser-induced retinal shock waves and bubbles and their dependencies on the thermomechanical properties of melanosomes

Bernard S. Gerstman; Jinming Sun

doi:10.1117/12.434699

9 July 2001 Laser-induced retinal shock waves and bubbles and their dependencies on the thermomechanical properties of melanosomes

Bernard S. Gerstman, Jinming Sun

Author Affiliations +

Proceedings Volume 4257, Laser-Tissue Interaction XII: Photochemical, Photothermal, and Photomechanical; (2001) https://doi.org/10.1117/12.434699
Event: BiOS 2001 The International Symposium on Biomedical Optics, 2001, San Jose, CA, United States

Abstract

We have developed a detailed theoretical model that allows for the prediction of the shockwave strength and bubble size that are expected to result in the retina as a result of a laser pulse of any pulse duration or energy. The results of the calculations for the shockwave and bubble size depend on the absorption coefficient and unknown thermo-mechanical properties of the absorbing melanosomes. We discuss how the shock strength and bubble size depend on melanosome parameters such as absorption coefficient, thermal coefficient of expansion and bulk modulus. We also describe experiments that could be performed to measure these coefficients in spite of the difficulty presented by the small size of the melanosomes.

Citation Download Citation

Bernard S. Gerstman and Jinming Sun "Laser-induced retinal shock waves and bubbles and their dependencies on the thermomechanical properties of melanosomes", Proc. SPIE 4257, Laser-Tissue Interaction XII: Photochemical, Photothermal, and Photomechanical, (9 July 2001); https://doi.org/10.1117/12.434699

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