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Proceedings Paper

Ten years of Nd:YAG Q-switched/mode-locked ophthalmic laser system clinical treatment
Author(s): Helena Jelinkova; Jiri Pasta; Karel Hamal; Miroslav Cech; Ivan Prochazka
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Paper 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.

Paper Details

Date Published: 18 June 1999
PDF: 6 pages
Proc. SPIE 3591, Ophthalmic Technologies IX, (18 June 1999); doi: 10.1117/12.350584
Show Author Affiliations
Helena Jelinkova, Czech Technical Univ. (Czech Republic)
Jiri Pasta, Military Hospital (Czech Republic)
Karel Hamal, Czech Technical Univ. (Czech Republic)
Miroslav Cech, Czech Technical Univ. (Czech Republic)
Ivan Prochazka, Czech Technical Univ. (Czech Republic)


Published in SPIE Proceedings Vol. 3591:
Ophthalmic Technologies IX
Bruce E. Stuck; Pascal O. Rol; Michael Belkin; Karen Margaret Joos; Fabrice Manns; Bruce E. Stuck; Michael Belkin, Editor(s)

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