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Author: Anoma Ranaweera B.V.Sc; PhD (Clinical Biochemistry, University of Liverpool, UK), July 2014.
The term LASER stands for light amplification by stimulated emission of radiation. Lasers produce an intense beam of light of a particular colour and wavelength which can be varied in its intensity and pulse duration.
Lasers can be used for the treatment of various dermatological conditions depending on the wavelength, pulse characteristics, and fluence (energy output) of the laser.
A variety of lasers are available; they are differentiated by the medium that produces the laser beam and the wavelength generated.
A KTP laser is a solid-state laser that uses a potassium titanyl phosphate (KTP) crystal as its frequency doubling device. The KTP crystal is engaged by a beam generated by a neodymium:yttrium aluminium garnet (Nd: YAG) laser. This is directed through the KTP crystal to produce a beam in the green visible spectrum with a wavelength of 532 nm.
The following skin disorders may be treated with KTP lasers using a US Federal Drug Agency (FDA)-approved machine, such as The Excel V® (Cutera). The Revlite SI (ConBio) is a Q-switched KTP laser. Both of these lasers also have a 1064 nm module.
The patient should wear eye protection, consisting of an opaque covering or goggles, throughout treatment.
Side effects from KTP laser treatment are usually minor and may include:
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