You may or may not remember this from science class, but light is actually a wave of energy. How short the distance is between those waves determines not only how high the energy it is, but what colors we see.
Blue Light exists naturally in our environment, however, digital screens emit Blue Light during times of the day when we would normally not encounter it. Furthermore, as we become more and more digitally addicted we spend extended periods of time staring directly into our devices. The closer proximity to a screen, the higher the concentration of Blue Light. A recent Nielsen report shows the average American adult spends more than 10 hours a day staring directly into a screen. Think about it. Every time that you glance at your phone, watch TV, or work at your computer your eyes are being bombarded with high energy Blue Light!
3 BLUE LIGHT RANGES
Fatigue Range from 400-420nm : blue light is causing your eyes to become irritated, strained, and tired.
Macular Damage Range from 400-440nm : Blue Light may be linked to permanent damage to the retina, causing long-term vision loss.
Sleep Range from 460-484nm : blue light at night hinders your melatonin production, disrupts your circadian rhythm, and leads to trouble sleeping.