Low-level laser therapy

Low-level laser therapy (LLLT), cold laser therapy or photobiomodulation (PBM) is a medical treatment approach that applies low-level (low-power) lasers or light-emitting diodes (LEDs) to the surface of the body. Whereas high-power lasers are used in laser medicine to cut or destroy tissue, it is claimed that application of low-power lasers stimulates healing, relieves pain, and enhances cell function. Described sometimes as low-level red-light therapy (LLRL), its effects appear to be limited to a specific set of wavelengths. The effectiveness of red-light therapy for treating various conditions is still under investigation. Repeated low-level red-light therapy may be effective for controlling myopia in children. Several such devices are cleared by the United States Food and Drug Administration (FDA), and low-level red-light therapy is being tested for treating a range of medical problems including rheumatoid arthritis and oral mucositis.