Laser resurfacing; technique using laser therapy to remove fine lines and wrinkles, pigmented areas, and tattoos.


(fo?to?ther-mol'i-sis) [ photo- + thermolysis]
The use of light produced by lasers to produce heat damage. photothermolytic (-mo'lit-ik), adjective

fractional photothermolysis

A method of laser skin resurfacing in which laser energy is directed at pinpoint, broadly separated islands of skin instead of larger swaths to remove cosmetically unappealing blemishes in skin color and texture. The technique is used to minimize the time it takes to restore normal epithelium to the treated surface.
Synonym: fractional ablation

selective photothermolysis

The use of short pulses of light to treat skin conditions. This method causes less damage to normal tissue than do continuous beam lasers.
References in periodicals archive ?
This is true with the selective photothermolysis lasers: the pigment lasers, vascular lasers, and laser hair removal.
Based on the principle of photothermolysis, it eliminates coagulated cells, introduces new cells and stimulates collagen.
According to Goyat, "The most recent, advanced, effective and the safest method to get rid of old tattoos is selective photothermolysis based laser treatment which is more result-oriented than other methods.
In general, QS lasers depend on the principle of selective photothermolysis and also produce an additional photoacoustic (photomechanical) effect, producing shock waves that cause an explosion of the target.
The biological basis of SLT has been proposed to be a selective photothermolysis targeting the melanin in TM [14].
Fractional Photothermolysis: To determine the efficacy of fractional photothermolysis in striae distensae, 22 women with striae distensae were treated with two sessions each of fractional photothermolysis at a pulse energy of 30 mJ, a density level of 6, and eight passes at intervals of 4 weeks and response to treatment was assessed by comparing pre- and post-treatment clinical photography and skin biopsy samples.
sup][19] The basic principle of laser treatment is using the selective photothermolysis between the laser and the biological tissue.
Flash dye pulsed laser is a promising alternative to surgery that can achieve an selective photothermolysis and destruction of the superficial vessels of the lesion [24].
It was reported that, by this method which is based on the use of selective photothermolysis, the melanin pigment within the hair follicle is targeted without giving any damage to the surrounding tissue.
Specific topics include the response of tissue to laser light, liquid and solid-state tunable organic dye lasers for medical applications, time-resolved fluorescence polarization spectroscopy and optical imaging of smart receptor-targeted contrast agents in tissues for detecting cancer, lasers in otorhinolaryngology and head and neck surgery, and nanoparticles and nanoparticle clusters as mediators of laser photothermolysis and hyperthermia.
Fraxel gets its name from fractional photothermolysis, which means that with every treatment, the area treated is 15 to 25 per cent of the surface area of the skin, depending on whether the patient has milder or deeper wrinkles and lines.