12/10/2021
What is blue light?
Blue light is everywhere. It’s found in the sun’s rays and is emitted from the fluorescent lighting and screens of electronic devices.
The sun contains all colors of light, including red, orange, green, and blue. Each of these colors emits different energy levels. Red light, for example, has longer wavelengths and less energy. Blue light, on the other end of the spectrum, has shorter wavelengths and more energy.
While you get most of your exposure to blue light from the sun when outside, people are now getting more exposure than ever when they’re inside — from their screens. This excessive exposure to blue light has some eye health professionals worried.
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