light therapy


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light therapy

Etymology: AS, leoht + Gk, therapeia, treatment
the use of natural light or light of specified wavelengths to treat disease. This may include ultraviolet light, colored light, or low-intensity laser light. The eye is generally the initial entry point for the light because of its direct connection to the brain through the retinal hypothalamic pathway, which affects the autonomic nervous system and endocrine function. Light therapy has been used primarily for attention deficit disorders, cataracts, conjunctivitis, headaches, head trauma, hyperactivity, lazy eye, macular degeneration, migraine, night blindness, poor eyesight, stroke, and vision disorders. It has also been effective in treating eczema, fever, psoriasis, addictions, allergies, anxiety, autism, bronchitis, childbirth, glaucoma, insomnia, muscle spasm, premenstrual syndrome, stress, and strep throat. Light therapy complements many other treatments for these and other conditions.
The use of certain segments—in particular, the visible range—of the electromagnetic spectrum as a therapeutic modality. Light therapy may act via the hypothalamus, which releases neurotransmitters and releasing factors, after receiving impulses from retina
Formats Full spectrum light—e.g., sunlight, bright light—2 to 10,000 lux, UV light, coloured light, haemoirradiation
Fringe medicine No peer-reviewed data support claims that light therapy is effective in treating AIDS, alcoholism, Alzheimer’s disease, arthalgia, asthma, bulimia, cancer, depression, drug abuse, dysmenorrhea, fatigue, hair loss, headaches, high cholesterol, hostility, immune dysfunction, infections, insomnia, strokes, tooth decay, or other conditions
Mainstream medicine Intense light therapy may be effective for seasonal affective disorder (SAD), and shiftwork-related sleep disorders

light therapy

1. The use of certain segments–in particular, the visible range of the electromagnetic spectrum as a therapeutic modality; LT may to act via the hypothalamus, which releases neurotransmitters and releasing factors, after receiving impulses from retina Formats Full spectrum light–eg, sunlight, bright light–2 to 10,000 lux, UV light, colored light, hemoirradiation Mainstream medicine LT may be effective in seasonal affective disorder–SAD, and shiftwork-related sleep disorders. See Bright light therapy.
2. Bright light therapy, see there.
3. Heliotherapy, see there.

light ther·a·py

(līt thār'ă-pē)
The therapeutic use of ultraviolet, colored, and laser lights to reestablish diurnal rhythms and alleviate pain and depression.
References in periodicals archive ?
In various studies, the use of bright light therapy - typically used for seasonal affective disorder and major depression - has had encouraging results in alleviating symptoms and may offer mothers affected by PPD another treatment option.
The new message is that light therapy is not just for seasonal affective disorder but for all forms of depression and for many other disorders," she added.
Studies show that light therapy is a solution to treating depression caused by the absence of sunlight.
21, 2015 /PRNewswire-iReach/ --Beverly Hills Rejuvenation Center , the destination for age management and wellness, announces the launch of the NovoTHOR low level light therapy bed (LLLT) bed at its Los Angeles location.
His remarkable improvement led to the 1984 publication of the first research paper describing SAD and its treatment with light therapy.
In searching for a cure, researchers are looking at timing light therapy with a patient's biorhythms; treating individuals with smaller, portable lights; and studying people's reactions to the seasonal absence of electrically-charged negative ions that occur naturally in the spring air.
Light therapy for SAD is very useful, but can be inconvenient and is not effective in everybody, Dr.
For further details there are a number of websites that give details of pulsed light therapy, while Caroline can advise on suitability: call 01484 600400.
The findings have indicated that horses may get depressed over the winter and that treating them with light therapy could be effective in reducing these winter blues.
Casaccio treats her psoriasis with light therapy, anthralin and coal tar baths with the occasional use of topical steroids and Tazorac (tazarotene), a synthetic form of vitamin A.
Several studies to determine the optimal doses and duration of light therapy are underway.
Haraszti doesn't expect light therapy to be a cure.