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

What’s more fascinating is that, unlike LED light therapy, this laser works over sun protection factor (SPF) or makeup without (supposedly) losing efficacy. —Julian Chokkattu, Wired News, 19 Apr. 2025

The facial sculptor contours to your face’s shape for smooth gliding, and there are seven light colors, each with varying degrees of light therapy. —Bestreviews, Mercury News, 27 Mar. 2025

This Best of Beauty Award winner comes with several attachments—microcurrent, percussion, cleansing, and LED light therapy—blue light targeting acne, red light targeting fine lines all over, and red light plus-infrared for targeting fine lines specifically around your eyes. —Annie Blackman, Allure, 3 Apr. 2025

Opt for gentle treatments like lotions, steam, and light therapy, as harsh treatments that break the skin, may be more likely to trigger a psoriasis flare. —Sarah Bence, Otr/l, Verywell Health, 2 Apr. 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