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

Eastend also offers a suite of recovery treatments, including the sauna, cold plunge, salt therapy, compression therapy, and light therapy. —Kristen Geil, Outside, 4 Dec. 2025

Quietly leading the charge in light therapy technology, Omnilux’s Black Friday sale is not to be missed. —Kristina Rutkowski, Vogue, 29 Nov. 2025

It’s best diagnosed and treated by a mental health professional, said Manly; light therapy, medications and psychotherapy are all often part of treatment. —Helen Carefoot, Flow Space, 25 Nov. 2025

Best gifts for the 2025 holiday season This cordless LED skincare mask utilizes clinically proven light therapy to help reduce fine lines and wrinkles, treat acne, and firm the skin. —Bestreviews, Mercury News, 21 Nov. 2025

Word History

First Known Use

1987, in the meaning defined above

Rhymes for light therapy

• brachytherapy
• chemotherapy
• cryotherapy
• hydrotherapy
• hypnotherapy
• monotherapy
• phototherapy
• psychotherapy
• sclerotherapy
• immunotherapy
• pharmacotherapy
• physiotherapy

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