Nowadays Needful Things
WHAT IS BLUE LIGHT?
Blue light on the visible light spectrum is shorter in wavelength (380 - 500 nanometers), having the highest energy of all visible light. It’s found in sunlight and necessary for keeping us energized and awake, also regulating our circadian rhythm. The issue arises though when blue light comes from artificial sources in large unwanted quantities.
“UV light affects the front of the eye, while blue light causes damage to the back of the eye,” according to Ronald Melton, OD of Macular Degeneration Association. Both UV light and blue light can be harmful depending on the exposure amounts and damage overtime.