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2. Optical mechanisms
Before detailing the various effects obtained, this article will describe the optical phenomena involved in light-biological tissue interaction, as these condition the final action. Biological tissues are complex, highly heterogeneous media, composed of scattering and absorbing structures and organelles. Their optical properties not only vary from one tissue to another, but can also vary within the same tissue due to local inhomogeneities. As with any material medium, light-tissue interaction involves three different phenomena: reflection, absorption and scattering .
2.1 Reflection
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Optical mechanisms
Photomechanical effect
Bibliography
Websites
Société Francophone des Lasers Médicaux http://www.sflm.org
American Society for Laser Medicine & Surgery, Inc.
Laser Group of the French Society of Dermatology
European Laser Association
International Photodynamic Association
European...
Events
ASLMS Annual Meeting, USA
SFLM Annual Congress, France
Risks and prevention :
Regulations
Medical lasers are approved in accordance with MDD 93-42. http://www.ec.europa.eu/enterprise/policies/european-standards/harmonised-standards/medical-devices/index_en.htm
In France
Statistical and economic data
Each year, Laser Focus World magazine publishes a study on the laser market, and the medical laser market in particular (table 1 and figure
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