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Photic retinopathy. Photic retinopathy is damage to the eye 's retina, particularly the macula, from prolonged exposure to solar radiation or other bright light, e.g., lasers or arc welders. The term includes solar, laser, and welder's retinopathy and is synonymous with retinal phototoxicity. [ 1] It usually occurs due to staring at the Sun ...
Health effects of sunlight exposure. Exposing skin to the ultraviolet radiation in sunlight has both positive and negative health effects. On the positive side, exposure allows for the synthesis of vitamin D 3. Vitamin D has been suggested as having a wide range of positive health effects, which include strengthening bones [ 1] and possibly ...
Photokeratitis or ultraviolet keratitis is a painful eye condition caused by exposure of insufficiently protected eyes to the ultraviolet (UV) rays from either natural (e.g. intense direct or reflected sunlight) or artificial (e.g. the electric arc during welding) sources. Photokeratitis is akin to a sunburn of the cornea and conjunctiva.
Pretty much everywhere in the U.S., the hottest part of the day is between 10 a.m. and 6 p.m. The body will gain heat from both the air temperature and solar radiation. The ground also heats up ...
On the evening of March 3, 1991, Rodney King and two passengers were driving west on the Foothill Freeway (I-210) through the Sunland-Tujunga neighborhood of the San Fernando Valley. [27] The California Highway Patrol (CHP) attempted to initiate a traffic stop and a high-speed pursuit ensued with speeds estimated at up to 115 mph (185 km/h ...
Palep herself was quite concerned with the dosage of the light therapy provided by the masks, as not every patient may require the same amount and duration of the treatment. "The potential dangers ...
Jay Anthony "Jaybird" Dobyns (born July 24, 1961) is a retired Special Agent and veteran undercover operative with the United States Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), author, public speaker, high school football coach, and University of Arizona adjunct professor.
Health threats from cosmic rays are the dangers posed by cosmic rays to astronauts on interplanetary missions or any missions that venture through the Van-Allen Belts or outside the Earth's magnetosphere. [ 1][ 2] They are one of the greatest barriers standing in the way of plans for interplanetary travel by crewed spacecraft, [ 3][ 4][ 5] but ...