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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 ...
Good news for anyone who permanently decimated their eyebrows with a pair of tweezers and bad lighting: the barely-there brow is making a comeback.
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.
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 ...
Many babies are born with blue eyes, and then their eyes change color as their genes continue to develop. Hair color is the same way, sometimes, babies are born with very light colored hair that ...
Adaptation (eye) In visual physiology, adaptation is the ability of the retina of the eye to adjust to various levels of light. Natural night vision, or scotopic vision, is the ability to see under low-light conditions. In humans, rod cells are exclusively responsible for night vision as cone cells are only able to function at higher ...
On that note, if you have a smart baby monitor like the Owlet or the Nanit, you likely won't find the sleep insights on the SNOO app very helpful since you can get a deeper look at your baby's ...
Modern, progressive, vigorous, and accessible. Even his mock Cockney accent with a touch of American seemed more down-to-earth and unaffected than the disdainful patrician tones of a man like Foreign Secretary Anthony Eden. He remained an intriguing international celebrity, his marital turmoil only enhancing the iconic mystery surrounding the man.