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Apr 24, 2023 · The whole light spectrum is traveling through our atmosphere — but the sky usually looks blue because blue light waves bounce and scatter off the nitrogen and oxygen particles in...
Feb 12, 2024 · Blue light triggers your eyes to react, especially the lens, retina, and cornea. Some research shows a link between eye damage and short-wave blue light with wavelengths between 415 and...
Jan 12, 2024 · Blue light is a wavelength of light often emitted by electronic devices and artificial lights. During the day, blue light influences your circadian rhythm, affecting alertness and heart rate. Limiting blue light at night can help mitigate its effects on sleep.
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Jul 24, 2024 · Blue wavelengths—which are beneficial during daylight hours because they boost attention, reaction times, and mood—seem to be the most disruptive at night. And the proliferation of electronics with screens, as well as energy-efficient lighting, is increasing our exposure to blue wavelengths, especially after sundown.
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- Blue light is everywhere. Sunlight is the main source of blue light, and being outdoors during daylight is where most of us get most of our exposure to it.
- HEV light rays make the sky look blue. The short-wavelength, high-energy light rays on the blue end of the visible light spectrum scatter more easily than other visible light rays when they strike air and water molecules in the atmosphere.
- The eye is not very good at blocking blue light. Anterior structures of the adult human eye (the cornea and lens) are very effective at blocking UV rays from reaching the light-sensitive retina at the back of the eyeball.
- Blue light exposure may increase the risk of macular degeneration. The fact that blue light penetrates all the way to the retina (the inner lining of the back of the eye) is important, because laboratory studies have shown that too much exposure to blue light can damage light-sensitive cells in the retina.
Feb 27, 2019 · Research has shown that lenses that filter blue light — often called blue light-blocking glasses or blue blockers — may increase contrast and comfort. These computer glasses that filter blue light may reduce eye tiredness — especially if you use digital devices for extended periods of time.
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Aug 3, 2022 · Blue light boosts alertness, helps memory and brain function, and elevates mood. It regulates your body's natural wake and sleep cycle (circadian rhythm). Sunlight is also important for the growth and development of eyes and vision in children.
