Photophobia
Medical condition / From Wikipedia, the free encyclopedia
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This article is about the human medical symptom. For the biological or botanical behavioral property, see Photophobia (biology). For the morbid fear of light, see Heliophobia. For the 2023 film, see Photophobia (film).
Photophobia is a medical symptom of abnormal intolerance to visual perception of light.[1] As a medical symptom, photophobia is not a morbid fear or phobia, but an experience of discomfort or pain to the eyes due to light exposure or by presence of actual physical sensitivity of the eyes,[2] though the term is sometimes additionally applied to abnormal or irrational fear of light, such as heliophobia.[3] The term photophobia comes from the Greek φῶς (phōs), meaning "light", and φόβος (phóbos), meaning "fear".[4][5]