light therapy


Definition of light therapy 

: 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

Click the video to see how, with the help of Neutrogena Light Therapy Acne Spot Treatment, a pen-like device that uses light therapy to target acne, and some self love, Annie's skin cleared — and even more importantly, her confidence soared. Jennifer Tzeses, Cosmopolitan, "Annie Jaffrey's Breakout Advice is Life-Changing," 30 Aug. 2017 That’s why aesthetician Jessica Arnaudin has recovering tanning-bed-junkie clients slip under the LED light therapy lamps at Beauty Bungalow, a St. Petersburg, Fla., day spa. Dana Wood, WSJ, "6 Actually Convincing Ways to Fake a Tan," 15 May 2018 Beloved by Victoria Beckham, Chapman’s custom offerings range from a plumping micro-needling facial to a four-digit transformative treatment that uses LED light therapy, radio frequency, and laser resurfacing to lift, firm, and contour the face. Zoe Ruffner, Vogue, "Meghan Markle’s Guide to Royal Wedding Beauty in London," 14 May 2018 The new therapy includes the oral medication Xeljanz (tofacitinib) — a drug already approved for use in rheumatoid arthritis patients that dampens the body's immune response — and ultraviolet-B light therapy. Serena Gordon,, "New treatment could be 'breakthrough' for vitiligo," 8 Feb. 2018 Awash in crimson rays, Jordyn Woods readied her summer glow with a brightening LED light therapy, as elsewhere, Ashley Graham took her workout to the streets with a strengthening sled push exercise. Lauren Valenti, Vogue, "The 10 Best Beauty Looks of the Week: Kendall Jenner, Victoria Beckham, and More," 13 May 2018 Another indoor playroom that offers open play, story time, camps and special events like light therapy. Lauren Chval, RedEye Chicago, "The cool mom's guide to Chicago," 8 May 2018 The spa-like master bath offers an infinite edge, light therapy tub; a steam shower; separate vanities; a tray ceiling with wood paneling; built-in speakers; televisions in the mirrors; and a towel heater. Lisa Zapalac, Houston Chronicle, "Braeswood Place contemporary offers 5,500-plus square feet," 6 May 2018 The price for pro-level treatments can add up—hence the popularity of at-home light therapy devices. Kari Molvar, Vogue, "Why Cross-Training Your Skin Is the Acne Solution Derms Swear By," 2 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'light therapy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of light therapy

1935, in the meaning defined above

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The first known use of light therapy was in 1935

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More Definitions for light therapy

light therapy


Medical Definition of light therapy 

: 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

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