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home:lifestyle:light:photosensitivity [01.11.2019] – [Finding a tolerable level of light exposure] sallieq | home:lifestyle:light:photosensitivity [01.11.2019] – [Photosensitivity] sallieq | ||
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======Photosensitivity====== | ======Photosensitivity====== | ||
- | Abnormal sensitivity to sunlight and bright lights is known as photosensitivity and sometimes referred to as "sun flare" or photophobia. In the context of the MP, the ultimate cause of photosensitivity is the Th1 inflammatory disease process – [[home: | + | Abnormal sensitivity to sunlight and bright lights is known as photosensitivity and sometimes referred to as "sun flare" or photophobia. In the context of the MP, the ultimate cause of photosensitivity is the Th1 inflammatory disease process – [[home: |
Photosensitivity can occur either when the skin is exposed to bright natural light or the eyes are exposed to either natural or artificial light. Photosensitivity symptoms can occur immediately after exposure or begin 1 to 3 days later, sometimes persisting 5 days or more. | Photosensitivity can occur either when the skin is exposed to bright natural light or the eyes are exposed to either natural or artificial light. Photosensitivity symptoms can occur immediately after exposure or begin 1 to 3 days later, sometimes persisting 5 days or more. | ||
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MP patients who expose themselves to light from all sources will soon know if they can tolerate light, and to what degree, based on their symptoms. | MP patients who expose themselves to light from all sources will soon know if they can tolerate light, and to what degree, based on their symptoms. | ||
- | Many members will need to live in a sunlight free environment until they are healed enough to increase 125D from sunlight as well as protect the eyes from sunlight with the use of NOIR sunglasses. Most of these find NOIRs to be needed 100 percent of waking hours with sunlight; also with artificial light that is over 30 lux [[home: | + | Many members will need to live in a sunlight free environment until they are healed enough to increase 125D from sunlight as well as protect the eyes from sunlight with the use of NOIR sunglasses. Most of these find NOIRs to be needed 100 percent of waking hours with sunlight; also with artificial light that is over 30 lux [[home: |
There is no typical length of time between natural light exposure and a symptom flare. Some will feel the effects within an hour or two while others may not experience an increase in symptoms for a day or longer. An MP patient' | There is no typical length of time between natural light exposure and a symptom flare. Some will feel the effects within an hour or two while others may not experience an increase in symptoms for a day or longer. An MP patient' | ||
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==== Controlling intolerable symptoms ==== | ==== Controlling intolerable symptoms ==== | ||
- | While rare, it is important to note that some MP patients may be at high risk for an acute adverse event caused by sunlight exposure or because the [[home: | + | While rare, it is important to note that some MP patients may be at high risk for an acute adverse event caused by sunlight exposure or because the [[home: |
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==== Resolution of photosensitivity ==== | ==== Resolution of photosensitivity ==== | ||
- | As MP patients' | + | As MP patients' |
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