Light therapy
Therapy involving intentional exposure to sunlight / From Wikipedia, the free encyclopedia
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See also: Photodynamic therapy and Photothermal therapy
Not to be confused with Low-level laser therapy.
"Light box" redirects here. For other uses, see Lightbox (disambiguation).
Light therapy, also called phototherapy or bright light therapy is the exposure to direct sunlight or artificial light at controlled wavelengths in order to treat a variety of medical disorders, including seasonal affective disorder (SAD), circadian rhythm sleep-wake disorders, cancers, and skin wound infections. Treating skin conditions such as neurodermatitis, psoriasis, acne vulgaris, and eczema with ultraviolet light is called ultraviolet light therapy.