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Abundant visible light to the eyes gives health benefits through its association with the timing of melatonin synthesis, maintenance of normal and robust circadian rhythms, and reduced risk of seasonal affective disorder. [10] On the negative side, UV is a mutagen and carcinogen for skin.
Computer vision syndrome. Computer vision syndrome ( CVS) is a condition resulting from focusing the eyes on a computer or other display device for protracted, uninterrupted periods of time and the eye's muscles being unable to recover from the constant tension required to maintain focus on a close object.
Blue light, a type of high-energy light, is part of the visible light spectrum. High-energy visible light (HEV light) is short-wave light in the violet/blue band from 400 to 450 nm in the visible spectrum, which has a number of purported negative biological effects, namely on circadian rhythm and retinal health (blue-light hazard), which can lead to age-related macular degeneration.
Pinhole glasses, also known as stenopeic glasses, are eyeglasses with a series of pinhole-sized perforations filling an opaque sheet of plastic in place of each lens. Similar to the workings of a pinhole camera, each perforation allows only a very narrow beam of light to enter the eye which reduces the size of the circle of confusion on the ...
Unfortunately, not every parent can provide love, support, safety, and security for their children. The post 30 Things That People Grew Up With And Now Realize Were Far From Normal first appeared ...
Reflections in a Golden Eye is a 1967 American drama film directed by John Huston and based on the 1941 novel of the same name by Carson McCullers. The film stars Elizabeth Taylor and Marlon Brando as an unhappily married couple on a US Army base in Georgia during the 1940s.
Image credits: Throwawayamanager #11. When I was in 5th grade maybe (10-11yrs old). I wanted to go home really bad so I decided I would pretend to pass out. Went to the bathroom during lunchtime ...
The ocular immune system protects the eye from infection and regulates healing processes following injuries. The interior of the eye lacks lymph vessels but is highly vascularized, and many immune cells reside in the uvea, including mostly macrophages, dendritic cells, and mast cells. [ 1] These cells fight off intraocular infections, and ...