light therapy

noun

: the treatment of medical or psychiatric conditions (such as seasonal affective disorder) by the controlled application of light

called also light treatment, phototherapy

Examples of light therapy in a Sentence

Recent Examples on the Web

Some devices also have a blue light therapy option, which penetrates the top layer of skin to kill acne-causing bacteria, and can reduce inflammation to clear up your skin. —Nena Farrell, WIRED, 29 Nov. 2024

Yoga, vagus nerve stimulators, or red and blue light therapy are also rotated through her wellness regimen. —Isabella Milano, Better Homes & Gardens, 20 Nov. 2024

First, a quick science lesson: LED (light-emitting diode) light therapy uses different wavelengths of visible light—each of which shows up as a different color—to treat various skin conditions. —Amy Wilkinson, SELF, 5 Dec. 2024

Treatment is available for SAD and may include medications, counseling, and light therapy. —Lana Barhum, Verywell Health, 4 Dec. 2024

Word History

First Known Use

1987, in the meaning defined above

Medical Definition

light therapy

noun

: phototherapy

especially : the use of strong light (as of 10,000 lux intensity) for the treatment of depression and gloom (as in seasonal affective disorder)

called also light treatment