Bubble formation by retinal laser effects produced by submicrosecond (200 ns) Nd:YAG (532 nm) laser pulses: macroscopic observations

Johann Roider M.D.; Cornelia Lindemann; Gerit Droege; Reginald Birngruber

doi:10.1117/12.260880

5 December 1996 Bubble formation by retinal laser effects produced by submicrosecond (200 ns) Nd:YAG (532 nm) laser pulses: macroscopic observations

Johann Roider M.D., Cornelia Lindemann, Gerit Droege, Reginald Birngruber

Author Affiliations +

Proceedings Volume 2930, Lasers in Ophthalmology IV; (1996) https://doi.org/10.1117/12.260880
Event: BiOS Europe '96, 1996, Vienna, Austria

Abstract

Retinal photocoagulation was observed with repetitive short laser pulses of a Nd:YAG laser. The number of pulses applied was 10 and 500. Threshold curves for angiographic and ophthalmoscopical visibility as well as for bleeding were established. No macroscopic disruptive effects were observed, however macroscopic visible bubble formation occurred regularly at energy levels 2 times above ophthalmoscopical visibility. Bubble formation as primary interaction mechanism due to local overheating of single melanin granules is postulated.

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Johann Roider M.D., Cornelia Lindemann, Gerit Droege, and Reginald Birngruber "Bubble formation by retinal laser effects produced by submicrosecond (200 ns) Nd:YAG (532 nm) laser pulses: macroscopic observations", Proc. SPIE 2930, Lasers in Ophthalmology IV, (5 December 1996); https://doi.org/10.1117/12.260880

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