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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.
Many synthetic compounds, including drug substances like tetracyclines or fluoroquinolones, are known to cause these effects. Surface contact with some such chemicals causes photodermatitis, and many plants cause phytophotodermatitis. Light-induced toxicity is a common phenomenon in humans; however, it also occurs in other animals.
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 .
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 ...
Uchū Ryokō caused a similar incident, when a reported four children were taken to hospitals by ambulances after viewing a scene with red and white flashing colours. [17] In March 2008, the Anonymous group of hackers was claimed to be behind an attack on a forum for people with epilepsy. [18]
While pet danders, dust mites, and pollens are not infectious or harmful, your body may see them at the same time it comes into contact with bad things like fungi and parasites, sparking the reaction.
"The potential dangers of using at-home LED masks include headaches, eye strain, sleep disturbances, insomnia and mild visual side effects," she explained.
Several types of weather may not seem all that hazardous, but can actually be quite dangerous. Here are five examples. ... Blinding sun may have caused a crash in Maine on Jan. 7, ...