Friday, November 17, 2017

Laser effects on skin lesions.. Penetrate the skin surface and absorb by target tissue according to melanin pigment, hemoglobin and water

Laser effects on skin lesions:
Skin thickness (100 microns) is highly laser-capable and is usually affected and severely damaged during laser surgery unless it is sufficiently cool before treatment.
The upper dermis is 400 microns thick and contains the vascular cores that branch out from the superficial arterial network supplied by arteries in the lower dermis.
The lower dermis has a thickness of about 400 microns and consists of tissue supporting the sweat glands build follicles and large blood vessels.
When we direct the laser towards the skin, the light penetrates the surface of the skin and is absorbed by the target tissue and a fraction of it is reflected or scattered.
There are three main factors, all of which are important in laser treatment. These are the objectives upon which the laser type used for treatment is chosen.
These factors are mainly: pigment melanin, hemoglobin, and water.