Comparison of the treatment of epidermal pigmented lesions with the Q-switched Nd:YAG laser (1064 nm and 532 nm) and the Q-switched ruby laser (694 nm)

Suzanne Linsmeier Kilmer M.D.; R. Rox Anderson M.D.

doi:10.1117/12.147015

1 July 1993 Comparison of the treatment of epidermal pigmented lesions with the Q-switched Nd:YAG laser (1064 nm and 532 nm) and the Q-switched ruby laser (694 nm)

Suzanne Linsmeier Kilmer M.D., R. Rox Anderson M.D.

Author Affiliations +

Proceedings Volume 1876, Lasers in Otolaryngology, Dermatology, and Tissue Welding; (1993) https://doi.org/10.1117/12.147015
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

The ability of the Q-switched Nd:YAG laser (532 nm and 1064 nm, 10 - 20 ns, 10 Hz) and the Q-switched Ruby laser (694 nm, 40 ns) to remove pigmented epidermal lesions was assessed in 15 patients. Several lesions in the same general area were irradiated with varying fluences and wavelengths and the results of a single treatment session were compared. For the treatment of solar lentigenes, response was related to wavelength with greatest improvement (> 95% pigment removal) noted with the frequency-doubled QS Nd:YAG laser (532 nm) at 4 or 5 J/cm². Mild, transient erythema, hypopigmentation, and less commonly, hyperpigmentation were noted with the QS Nd:YAG at 532 nm and the QSRL. No other side effects including leukotrichia, textural changes or scarring were noted.

Citation Download Citation

Suzanne Linsmeier Kilmer M.D. and R. Rox Anderson M.D. "Comparison of the treatment of epidermal pigmented lesions with the Q-switched Nd:YAG laser (1064 nm and 532 nm) and the Q-switched ruby laser (694 nm)", Proc. SPIE 1876, Lasers in Otolaryngology, Dermatology, and Tissue Welding, (1 July 1993); https://doi.org/10.1117/12.147015

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