Photosensitive
Photosensitive
Photosensitive (pronunciation: /ˌfoʊtoʊˈsɛnsɪtɪv/) refers to the sensitivity to light, particularly of the skin or eyes.
Etymology
The term "photosensitive" is derived from the Greek words "phos" (light) and "sensitivos" (feeling or perception).
Definition
Photosensitivity is a condition in which the skin or eyes react abnormally to light, especially sunlight and ultraviolet (UV) radiation. This can result in rashes, blisters, or eye discomfort when exposed to light.
Related Terms
- Photodermatitis: A skin condition in which exposure to sunlight causes inflammation of the skin.
- Photophobia: An extreme sensitivity to light, causing discomfort or pain in the eyes.
- Photoallergy: An allergic reaction to sunlight, often caused by a reaction between sunlight and a chemical applied to the skin.
- Phototoxicity: A severe skin reaction caused by exposure to sunlight after taking certain medications or substances.
Causes
Photosensitivity can be caused by various factors, including certain medications, skin conditions, and genetic disorders. Some of the common causes include:
- Medications: Certain medications, such as antibiotics, diuretics, and antihistamines, can make the skin more sensitive to sunlight.
- Skin Conditions: Certain skin conditions, such as lupus and rosacea, can cause photosensitivity.
- Genetic Disorders: Certain genetic disorders, such as porphyria, can cause photosensitivity.
Treatment
Treatment for photosensitivity depends on the underlying cause. It often involves avoiding sunlight, using sun protection, and treating the underlying condition.
External links
- Medical encyclopedia article on Photosensitive
- Wikipedia's article - Photosensitive
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