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Lasers—25 Years Later

Twenty-five years ago, it would have taken a dermatologist of considerable vision to see the laser as the seed of a major advance in dermatoiogic therapeutics. Today, however, there is considerable international experience in the numerous clinical applications of lasers, even though absolute indications for their use are not defined clearly. In the future, the characteristics of a laser's output may determine its usefulness in the treatment of a given disease as the ability of certain laser systems to produce selective tissue damage has been demonstrated clearly. Further understanding of dosimetry and laser-tissue interaction, along with the continued rapid development of new lasers, indicates that the future holds many exciting developments that may provide successful treatment of many diseases for which current therapy is difficult or inadequate. In this review, we intend to outline the theory of laser-tissue interaction, to discuss the current clinical uses of lasers, and to indicate how their full potential may be realized.