Lasers in Dermatology

Introduction

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  Laser is an acronym for light amplification by the stimulated emission of radiation.

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  Laser light is a monochromatic (single wavelength), coherent (waves in phase), and collimated (waves travel in parallel) form of energy.

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  In the skin, laser energy is absorbed by chromophores, which include water, melanin, oxygenated hemoglobin, and certain tattoo pigments.

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  Newer, more modern laser technology uses selective photothermolysis to improve outcomes and reduce thermal damage and potential scarring.

Uses of Lasers in Dermatology