Tuesday, November 28, 2017

Clinical manifestations of the effect of sunlight.. Burn the sun. Dab the skin and increase the thickness of the corneal layer. Freckles and early skin aging



Clinical manifestations of the effect of sunlight:
A sharp solar reaction:
Sunburn:
The erythema is a direct response, and may be mild or severe. Pseudomonas aeruginosa occurs late on exposed areas with a sensation of intense burning and bleeding from the surface of the skin and is more common in eggs and white veins.
Melanin in dark-skinned people (black) acts as an effect of sunlight as it reflects, absorbs and excites ultraviolet rays.
The form of the reaction caused by sun exposure is sudden erythema, photodermatitis or sunburn due to late UVA or erythema, which begins several hours after exposure to UVB radiation. UVB also has an effect on the covered and non-covered parts of the body, unlike UVA, which affects only sun-exposed areas. This reaction may disappear after several days leaving skin pigmentation. Pigmentation occurs as a result of increasing the production of melanin in melanocytes in response to UVB rays that increase the binding of the activated hormone to pigmented pigmented cells in melanocytes leading to the proliferation of melanocytes melanocytes.
The branching branches cause skin pigmentation.
With a cytotoxicity.
Allergic reaction.
D - polymorphism.
The effect of chronic sun exposure.
Chronic Solar Impacts:
Damping the skin and increasing the thickness of the corneal layer is the mildest risk due to chronic exposure to the sun.
Sunburn, melanoma (melanoma) and thrombocytopenia are a very serious complication as fatal cases of melanomas have increased over the past years due to excessive sun exposure, especially on the shores of the sea to obtain a bronze skin.
Nematosis and early skin aging also occur due to the degeneration of collagen caused by sunlight.