Light therapy or phototherapy, used to treat mild, moderate and severe psoriasis, involves exposing the skin to ultraviolet light on a regular basis and under medical supervision. The ultraviolet radiation from these devices can damage the skin, cause premature aging and increase the risk of skin cancer. Light therapy or phototherapy, classically referred to as heliotherapy, consists of exposure to daylight or to specific wavelengths of light using polychromatic polarised light, lasers, light-emitting diodes, fluorescent lamps, dichroic lamps or very bright, full-spectrum light. The treatments involve exposing the skin to ultraviolet light. 6 There is moderate evidence for the efficacy of blue and blue-red light therapies in treating mild acne, but most studies are of low quality. Treatment with psoralen and UVA is referred to as PUVA. However, it poses a higher risk for skin cancers than UVB. UVB radiation from sunlight is known to increase the risk for skin cancers.
Treatment options for moderate to severe psoriasis include topical and systemic medications, phototherapy, and excimer laser, Combination therapies are often more effective than one treatment alone. Patients with psoriasis have a higher than normal risk of hardening of the arteries (atherosclerosis) and other blood vessel conditions that are also related to inflammation. When sunlight penetrates the top layers of the skin, the ultraviolet radiation bombards the DNA inside skin cells and injures it. The laser is more effective than narrowband UVB for localized psoriasis, because it allows very specific areas of skin to be targeted. Medicated foams and scalp solutions are available to treat psoriasis patches on the scalp. It’s also available in higher concentrations by prescription. When exposed to UV rays in sunlight or artificial light, the activated T cells in the skin die. This form of light therapy, used for mild to moderate psoriasis, treats only the involved skin. Today, there is another option for treating psoriasis: excimer lasers, which deliver ultraviolet light to localized areas of the skin. Excimer lasers aim a high intensity ultraviolet B (UVB) light dose of a very specific wavelength — 308 nanometers — directly at the psoriasis plaques. Because the laser light never touches the surrounding skin, it reduces the risk of UV radiation exposure. Excimer lasers are used to treat mild-to-moderate psoriasis.
Aetna considers psoralens and ultraviolet A light (PUVA) treatments medically necessary for the following conditions after conventional therapies have failed:. Topical corticosteroids are the main stay of the treatment for mild to moderate psoriasis. It may be occasionally used in combination with UV light therapy (phototherapy). Natural sunlight or artificial ultraviolet A or B (UVA or UVB) radiation either alone or in combination with photosensitizing drugs are used for treating psoriasis. New therapies for the treatment of moderate to severe psoriasis will soon become available which have specific actions on the cutaneous immune system. The refinement of the phosphor in the inner lining of the glass tubes, stimulated by the radiation emitted when an electric current is passed through a mercury vapor, allowed for differing spectra of UV light to be generated at a low voltage and relatively low amount of heat. Applying specific wavelengths of UV light based on the psoriasis action spectrum in treating psoriasis has been the most important aspect of phototherapy in the last decade. The most recent progression of delivery of UV light therapy has been the delivery of laser light in the UV region or high fluence for a narrow spectrum of UV light in or near the most effective wavelengths for treatment of psoriasis.
In ancient times, Egyptians were known to use sunlight to treat a variety of skin ailments, while other early civilizations including the Romans and Greeks also used sunlight for therapeutic purposes. Dr. John Ingram developed a treatment regimen using ultraviolet B (UVB) radiation in conjunction with coal tar and anthralin paste. UVB was discovered to be effective in clearing mild forms of psoriasis when given in doses,4 while ultraviolet A (UVA) irradiation in combination with either oral5, 6 or topical application7 of psoralen, was found to be effective in treating psoriasis. Treatment options for moderate to severe psoriasis include topical and systemic medications, phototherapy, and excimer laser. Phototherapy, which involves exposure of the skin to ultraviolet light, can help improve the symptoms of psoriasis. (a high-strength topical steroid in mild-to-moderate psoriasis or an oral immunosuppressant in more severe cases). UVB radiation from sunlight is known to increase the risk for skin cancers. Although treatment can provide patients with high degrees of disease improvement, there is no cure for psoriasis. Data are limited on the use of systemic retinoids for localized pustular psoriasis. Ultraviolet B (UVB) radiation (290 to 320 nm) is used in patients with extensive disease, alone or in combination with topical tar. Psoriasis can be limited to a few lesions or can involve moderate to large areas of skin. UVB and UVA are types of ultraviolet radiation. Present in natural sunlight, ultraviolet light B (UVB) is an effective treatment for psoriasis. Pulsed dye lasers Like the excimer laser, pulsed dye lasers are approved for treating chronic, localized plaque lesions. Phototherapy is the use of UV radiation in the treatment of skin disease. Photodynamic therapy and low-level light therapy are out of the scope of this review. High-dose UVA-1 is no longer widely used. Light therapy or sunlight may prevent plaques, but are they safe for your skin? Gibbs will discuss the different types of sunlight and light therapy available to treat psoriasis as well as the possible side effects. When we use phototherapy, we are giving you obviously ultraviolet light, which has known side effects. As I said of the spectrum of electromagnetic radiation, UVB is the more beneficial, and at the equator the sun is more intense in warmer areas, so I imagine there might be a slight benefit because there might be more of those intense rays at that time.
Phototherapy And Photochemotherapy (puva) For Skin Conditions
We specialize in selling home tanning lamps, UV sunlamps for Vitamin D, and other home tanning products. Make Vitamin D naturally in your body by exposure to the right UVB rays! This device is a registered medical device for treating psoriasis with special, high UVB output. This device allows you to treat your mild to moderate localized psoriasis in the privacy of your home. Barriers which reduce UV exposure are effective in preventing skin cancers (clothes, hats, creams, lotions). Holick, MD, PhD, a professor at Boston University, based on research, advocates moderate sun light exposure, which would facilitate vitamin D production in human body, as a mean to prevent skin cancer, as well as other forms of cancer. These numerous spots of psoriasis appear over large areas of the body, such as the trunk, limbs, and scalp. Grenz Rays (also called ultrasoft X-rays or Bucky rays) was a popular treatment of psoriasis during the middle of the 20th century.