noun. therapy consisting of exposure to infrared or ultraviolet light that is utilized for the remediation of not just particular skin conditions or disorders, but depression of a seasonal type too, referred to as seasonal affective disorder, or SAD. Commonly referred to as bright light therapy.

PHOTOTHERAPY: "Phototherapy can be quite helpful to individuals with Vitamin D deficiencies."
Cite this page: N., Pam M.S., "PHOTOTHERAPY," in, April 7, 2013, (accessed May 7, 2021).