photosensitivity
Reacting to illumination
Photosensitivity is abnormal sensitivity to light, especially sunlight.
In medicine, it describes skin that reacts to light exposure with rashes, burns, or inflammation—often as a side effect of certain medications: The antibiotic caused photosensitivity, so she avoided the sun.
In biology and chemistry, photosensitivity refers to any substance or organism that responds to light.
Photosensitive materials are essential to photography and solar cells.
Chronic autoimmune disorder
- porphyriaHeme pathway enzyme disorder
- photodermatitisSkin inflammation from light
- photoallergyImmune reaction to light exposure
- erythemaCutaneous vascular flushing
drug-induced · tetracycline · doxycycline · NSAIDs · sulfonamides · retinoids · dermatology · rash
Invisible solar radiation
- ultravioletWavelengths shorter than violet
- UVALong-wave ultraviolet
- UVBMedium-wave ultraviolet light
- exposureState of being unprotected
irradiance · wavelength · spectrum · sunlight · fluorescent · intensity · radiation · photophobia
UV-blocking skin cream
- SPFUltraviolet defense measure
- sunblockUV-protective skin cream
- broad-spectrumEffective across many varieties
- UPFFabric UV rating
shade · parasol · hat · sunglasses · reapplication · water-resistant · avoidance · indoor
UV-induced skin inflammation
- rednessCrimson-hued state
- irritationMild anger or inflammation
- inflammationProtective tissue response
- burnDamage by heat
epidermis · melanin · rash · blistering · peeling · hyperpigmentation · erythema · lesions
lupus
Chronic autoimmune disorder
- porphyriaHeme pathway enzyme disorder
- photodermatitisSkin inflammation from light
- photoallergyImmune reaction to light exposure
erythema · drug-induced · tetracycline · doxycycline · NSAIDs · sulfonamides · retinoids · dermatology · rash · blistering
UV
Invisible solar radiation
- ultravioletWavelengths shorter than violet
- UVALong-wave ultraviolet
- UVBMedium-wave ultraviolet light
exposure · irradiance · wavelength · spectrum · sunlight · fluorescent · intensity · radiation · photophobia · glare
sunscreen
UV-blocking skin cream
- SPFUltraviolet defense measure
- sunblockUV-protective skin cream
- broad-spectrumEffective across many varieties
UPF · shade · parasol · hat · sunglasses · reapplication · water-resistant · avoidance · indoor · dawn
sunburn
UV-induced skin inflammation
- rednessCrimson-hued state
- irritationMild anger or inflammation
- inflammationProtective tissue response
burn · epidermis · melanin · rash · blistering · peeling · hyperpigmentation · erythema · lesions · wheals
- sensitivitiesallergies, food allergies, latex allergy, nickel allergy, hay fever
- sensitivitysensitive, hypersensitivity, oversensitivity, hypersensitive, sensitization
- side effectsnausea, headache, dizziness, drowsiness, rash
- skin problemswrinkles, eczema, acne, lesions, blackheads
- drug effectsanalgesia, allergic reaction, stimulation, vasodilation, vasoconstriction
- Light Biologyphotoreceptors, photoreception, rod cells, retina, optic nerve
photo, sensitivity, photon, photons, photoelectric, photochemical, photosensitive, photochemistry, photoengraving