Laser

It is the acronym for Light Amplification by Stimulated Emisssion of Radiation, that is, amplification of light by means of a stimulated emission of radiation. The first was developed in 1960 and already from the following decade it began to be used in the medical field.

The increased knowledge of the effects of light on the human body has increased its fields of application.

In fact, on a biological level we have:

• Photochemical effect: enzymatic activation, increase in metabolic exchanges and in the synthesis of proteins and nucleic acids

• Photothermic effect, which based on intensity, wavelength and exposure time can reach levels so high as to make the laser useful even in the surgical field

• Photomechanical effect: pressure waves are generated in the interaction between the light pulse and the physical medium.

In therapy these effects translate into:

• Anti-inflammatory action because the permeability of the lymphatic vessels is increased; because vasodilation promotes oxygen transport and because histamine producers are inhibited;

• Pain-relieving action because they also act on the membranes of nerve fibers, modifying their excitability and because the heat facilitates the drainage of algogenic substances

• Biostimulating action because the increased production of proteins facilitates the reparative processes

The only contraindications are cancer and pregnancy in addition to the application of areas of the body very close to the eye or genital area.