Phototherapy is a method for treating some diseases by exposure to sunlight or to certain wavelengths of light using lasers, light-emitting diodes, fluorescent lamps, dichroic lamps, or high-surface and full-spectrum light. The patient has this light for a specified period of time, and in some cases the exposure is only at certain times of the day.
Among the common uses of light therapy is to treat some skin diseases, some sleep disorders and mental disorders. For example, light therapy is used to treat acne and jaundice in the newborn. The retina of the eye is also exposed to therapeutic light to treat circadian system disorders such as delayed sleep phase syndrome, and light therapy is also used in the treatment of seasonal affective disorder, and there are those who advocate its use in other, non-seasonal mental disorders.

Phototherapy applications also extend to treating pain, accelerate wound healing, hair growth, acupuncture, and improve blood properties and circulation. Many of these uses employ low-power lasers and red light in the 620-660 nm range.
Phototherapy is a method for treating some diseases by exposure to sunlight or to certain wavelengths of light using lasers, light-emitting diodes, fluorescent lamps, dichroic lamps, or high-surface and full-spectrum light. The patient has this light for a specified period of time, and in some cases the exposure is only at certain times of the day.
Among the common uses of light therapy is to treat some skin diseases, some sleep disorders and mental disorders. For example, light therapy is used to treat acne and jaundice in the newborn. The retina of the eye is also exposed to therapeutic light to treat circadian system disorders such as delayed sleep phase syndrome, and light therapy is also used in the treatment of seasonal affective disorder, and there are those who advocate its use in other, non-seasonal mental disorders.

Phototherapy applications also extend to treating pain, accelerate wound healing, hair growth, acupuncture, and improve blood properties and circulation. Many of these uses employ low-power lasers and red light in the 620-660 nm range. 
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