Ten years of Nd:YAG Q-switched/mode-locked ophthalmic laser system clinical treatment

Helena Jelinkova; Jiri Pasta; Karel Hamal; Miroslav Cech M.D.; Ivan Prochazka

doi:10.1117/12.350584

18 June 1999 Ten years of Nd:YAG Q-switched/mode-locked ophthalmic laser system clinical treatment

Helena Jelinkova, Jiri Pasta, Karel Hamal, Miroslav Cech M.D., Ivan Prochazka

Proceedings Volume 3591, Ophthalmic Technologies IX; (1999) https://doi.org/10.1117/12.350584
Event: BiOS '99 International Biomedical Optics Symposium, 1999, San Jose, CA, United States

Abstract

Plasma breakdown generated by high power lasers is used in ophthalmic microsurgery for perforation of the various membranes. We report on ten years of clinical experiences with the ophthalmic Nd:YAG laser system operating alternatively in both Q-switched or mode-locked regimes. This option gives the surgeon a possibility to compare the effect of treatments with nanosecond or picosecond pulses. The pulse duration in the picosecond regime is 25 ps, the length of a nanosecond pulse is 4 ns and the energy is variable up to 70 mJ. In the ten year period the laser system was used for more than 10 000 treatments. From the results is possible to conclude that in clinical practice the picosecond pulses are better for the posterior capsule opacification treatment and that there are not retinal complications. The nanosecond pulses are useful for iridectomies. Our constructed Nd:YAG laser system provides the surgeons with the possibility to use different photodisruptive regimes for special indications, which can be very useful for the ophthalmologists.

Citation Download Citation

Helena Jelinkova, Jiri Pasta, Karel Hamal, Miroslav Cech M.D., and Ivan Prochazka "Ten years of Nd:YAG Q-switched/mode-locked ophthalmic laser system clinical treatment", Proc. SPIE 3591, Ophthalmic Technologies IX, (18 June 1999); https://doi.org/10.1117/12.350584

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