The emergence of cosmetic lasers offers new technical methods of treatment in the field of plastic beauty, and also solves many problems that have not previously been solved by treatment methods. However, due to complex technology and high cost, most cosmetic laser devices have entered China’s medical industry only in recent years.
The laser performs its functions, interacting with fabrics. Depending on the energy that the fabric converts into a laser, the laser is divided into:
Photothermic effect: tissues convert the laser light energy into thermal energy, the absorption coefficient of various tissues is different. Thus, the laser at a certain wavelength can be absorbed by certain specific fabrics, which is the main reason for the choice of high lasers, such as thin laser cutting, hemostasis, and removal of wrinkles;
2) the light sudden effect: the impulse laser can generate a high impact shock wave, the shock wave can lead to tissue rupture, grinding, for example, damage to Pigment particles with a laser;
Photochemical effects: The fabric converts the laser into chemical energy and produces chemical decomposition. To correct the deformation of the cornea, an ARF laser is used;
(4) Photodynamic effects: are mainly used to treat tumors.