0 the use of light to treat medical conditions, especially skin problems or mental health problems:
Three studies published today have found that light therapy is an effective treatment for people who become depressed in the winter.
In a newer type of light therapy, called dawn simulation, lamps or light boxes come on automatically and gradually increase light intensity in the home - mimicking a natural dawn.
Commercial tanning beds represent a form of light therapy that is widely available and frequently utilized by many psoriasis patients.
