Definition of phototherapy in US English:



  • The use of light in the treatment of physical or mental illness.

    • ‘Light therapy, also called phototherapy, has been used to treat seasonal affective disorder since the early 1980s, and it has many benefits.’
    • ‘In some cases, a jaundice baby has to have a treatment called phototherapy.’
    • ‘Details of previously affected pregnancies - particularly transfusions in the womb, neonatal anaemia, and the need for exchange transfusions or phototherapy - should also be obtained.’
    • ‘If 50 percent or more of the scalp is involved, treatment options include topical immunotherapy, systemic steroids or phototherapy.’
    • ‘As a result, light therapy or phototherapy has been developed.’