Dermatological Surgery – Update on Lasers

For over 30 years, lasers have been used to treat cutaneous disorders. Technological developments have led to the availability of a wide range of devices that are powerful, flexible and cost-effective, allowing safe and efficient treatment of a growing range of conditions. Lasers emit a single (monochromatic) wavelength of high intensity light that is absorbed by target structures in the skin and converted to heat energy. The interaction between light and biological tissues underlies this main concept and is known as the theory of selective photothermolysis. Checkout West Dermatology Rancho Mirage for more info.

Oxyhaemoglobin, contained in blood, and melanin, contained in hair follicles and pigmented lesions, are the main targets (chromophores) in the skin. Other targets include water for tissues and pigments for tattoos. Selective target structure heating induces clinically appreciable benefits, while non-target structure heating contributes to unnecessary side effects.

Like lasers, extreme pulsed light (IPL) devices are sources of high-energy light. However, with every pulse, IPLs are polychromatic and emit multiple wavelengths. The wavelength spectrum that is emitted to the cutaneous target of interest is tailored by filters with various cut off values.

Q Laser switching produces extremely high-powered beams that produce photoacoustic damage to tattoo particles and melanosomes in nanosecond pulses.

It will address important developments in the use of lasers for skin disorders. The treatment of vascular lesions such as port wine stains has been optimized by new generations of pulsed dye lasers and dual wavelength lasers. The improved protection of hair removal lasers has allowed care for dark skinned individuals to be carried out. Pneumatic suction devices are available as an attachment for existing lasers or built into handpieces and can maximize comfort and treatment efficacy. The difference between ablative resurfacing lasers and non-ablative lasers has been bridged by fractional resurfacing technology and is presently the most exciting new advancement in this sector.