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- Blue light is located in a narrow band near an outer edge of the visible spectrum, with wavelengths close to those of ultraviolet light. 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 455 nanometers.
www.webmd.com/eye-health/what-is-blue-light
Apr 24, 2023 · Blue light, like other colors of visible light, is all around you. The sun emits blue light. So do fluorescent and incandescent light bulbs. Human beings are exposed to more blue light...
Oct 19, 2023 · Blue light is the component of visible light with the shortest wavelength. It influences our circadian rhythm and excessive exposure to blue light is harmful to our eyes.
- 3 min
- What Is Blue Light? Visible light may look white, but it’s actually a range of colors. Each color has a different wavelength. Blue light is made of short wavelengths with a lot of energy.
- Does Blue Light Hurt Your Eyes? In large amounts, high-energy light from the sun -- like ultraviolet rays -- can increase your risk of eye diseases.
- Can Blue Light Affect Your Health? Too much man-made light can confuse your internal body clock. That’s called your circadian rhythm. Blue light can slow the release of melatonin.
- Smartphones and Tablets. These put out more blue light than any other color. But your device may have a “night” mode. It lets you give your screen an orange tint with longer-wavelength light.
- 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 12, 2024 · Blue light is located in a narrow band near an outer edge of the visible spectrum, with wavelengths close to those of ultraviolet light. Blue light triggers your eyes to react, especially the...
Feb 20, 2024 · Blue light glasses feature filtering materials or surface coating on the lenses to block out blue light. People who believe that their eye and vision symptoms are from blue light exposure may wear blue light glasses to reduce their exposure.
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. Learn about conditions related to vision and eye health.
