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Light sensitivity or photosensitivity refers to a notable or increased reactivity to light. Apart from vision , human beings have many physiological and psychological responses to light. In rare individuals an atypical response may result in serious discomfort, disease, or injury.
Photosensitivity is the amount to which an object reacts upon receiving photons, especially visible light. In medicine, the term is principally used for abnormal reactions of the skin, and two types are distinguished, photoallergy and phototoxicity .
Television has traditionally been the most common source of seizures in PSE. For people with PSE, it is especially hazardous to view television in a dark room, at close range, or when the television is out of adjustment and is showing a rapidly flickering image (as when the horizontal hold is incorrectly adjusted on analog television sets).
Phototoxins are toxins that can cause allergic reactions in particularly susceptible individuals and which can cause dangerous photosensitivity in a much broader range of subjects. Phototoxins are common in: a variety of plants (including food plants where they may be a biological defence): many citruses contain essential oils that are ...
Created Date: 8/30/2012 4:52:52 PM
Lesbians defended transgender women on social media Wednesday after the BBC published an article that many critics said made "dangerous" claims that painted
Photosensitivity is also found in some of the porphyrias. Nearly all cases of porphyria cutanea tarda [ 18 ] exhibit blister formation on the skin within 2–4 days of light exposure. Variegate porphyria [ 19 ] and hereditary coproporphyria [ 20 ] can also exhibit symptoms of light-induced blisters.
Skip the loaf of pre-sliced white bread during your next grocery trip. “There is minimal nutritional value in processed white bread (the one that comes in packages),” says Dr. Lopez-Jimenez.