Application of red light in the medical field: Red light is a light in the natural visible spectrum, whose wavelength range is 620nm-750nm. The light sensation of retina to this visible light is red, so it called red light. Red light has photochemical effect as well as thermal effect with strong penetration to human tissue. The penetration depth can up to 30mm that other wavelenghs of lights do not have, which have more obvious and direct biological effect. Biochemical action of red light: 1.Efficient enzymatic reaction 2. Cellular aerobic respiration 3. Promote the growth of fibrocyte and endothelial cell 4. Enhance immune function 5.Improve Blood Circulation 6. Relieve pain In the early and middle of inflammation, the levels of local tissue serotonin increase and serotonin can make the body produce pain. Irradiation of red light can enhance affected lymph circulation, promote blood circulation, accelerate cellular metabolism and reduce the levels of serotonin in inflammatory sites, thus achieving the analgesic effect. 7.Wound healing, cells of repairing Red light can increase electron transfer of mitochondrial inner membrane to increase ATP synthesis, increase DNA and RNA synthesis to accelerate collagen synthesis, improve the activity of fibroblasts and promote the growth of granulation tissue, thus promoting wound healing. Meanwhile, it also can accelerate the wound healing and increase tension of injury, besides, make the lymphatic obstruction and capillaries repairing normally.Indications of red light therapy: Wound healing various conventional surgical incisions, posttraumatic wound, incurable wound, acute or chronic wound. Eliminating inflammation: bacterial infection inflammation, fungal infection inflammation, internal bacteria-free inflammation, virus infection inflammation. Relieve pain the pain caused by acute or chronic diseases related with wound and inflammation.
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