A LASER is a device that emits a special form of light. The term LASER is an acronym for LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION .Radiation in this case refers to coherent light energy realeased, which produced the laser beam . Unlike conventional light sourse a Laser beam travels in only one direction and is monochromatic with ots protons ( like packets of energy ) which are all identical in size, travelling equidistant in ntime and space.

THE PRINCIPLE that work of LASER or PHOTO MEDICINE as it happens in plants for making it food. We know that when a plant exposed to normal sunlight Synthesizes carbohydrates in the process of Photosyntyhesis . LASER light stimulated effect on the tissue because it increases cellular energy . The LASER light energy becomes absorbed by tissue , stimulating the metabolic processess.

ACTION OF LASER :- There are five basic treatment benifits  1. Acceleration Tissue Repair . (2) Rapid Formation of Collagen  (3) Beneficial effect on nerve cells and the production of B- Endorphin (4) Acceleration Lymphatic System Activity and Reduction in Edema and (5) Formation of New Capillaries and Increase Blood Flow.