photodermatology
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| photodermatology [2026/06/10 12:37] – [Introduction] gary1 | photodermatology [2026/06/10 12:39] (current) – [Introduction] gary1 | ||
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| =====Introduction===== | =====Introduction===== | ||
| - | *UV light in particular (and to a lesser extent strong blue light from the sun) affects skin | + | *UV light: |
| * exposure to UV light is important in generating [[vitD]] | * exposure to UV light is important in generating [[vitD]] | ||
| * excessive UV light will cause sunburn, tanning, increased freckles and moles, photodermatoses, | * excessive UV light will cause sunburn, tanning, increased freckles and moles, photodermatoses, | ||
| + | *photodermatoses are abnormal skin responses to exposure to light and/or UV light causing rashes | ||
| + | *UV light is also used as phototherapy for various conditions such as [[psoriasis]] | ||
| + | * visible light: | ||
| * intense blue light can also cause skin redness, increase melasma, contribute to post-inflammatory hyperpigmentation and some photodermatoses, | * intense blue light can also cause skin redness, increase melasma, contribute to post-inflammatory hyperpigmentation and some photodermatoses, | ||
| - | *photodermatoses are abnormal skin responses to exposure to light and/or UV light causing rashes | + | *infrared |
| - | *UV light is also used as phototherapy for various conditions such as [[psoriasis]] | + | *acute intense exposures to infrared light can cause skin burns |
| - | | + | *chronic high exposures to infrared light can cause erythema ab igne skin pigmentation |
| - | *chronic high exposures to infrared light (radiant heat) can cause erythema ab igne skin pigmentation | + | |
photodermatology.txt · Last modified: 2026/06/10 12:39 by gary1