What is Blue Light?
Blue light comes from the sun, as well as LED lights and digital device screens. People are exposed to more blue light than ever before.
Blue light suppresses our body's release of melatonin, which helps regulate our sleep cycles. More of it during the day helps us to stay awake, and less of it at night makes us sleep better.
Reduce Computer-Caused Eye Strain with the 20-20-20 Rule
To help you deal with this problem, the 20-20-20 rule suggest that after every 20 minutes, you (the computer user) should take a break for at least 20 seconds and look at objects that are 20 feet away from you.
Or wear anti-blue rays glasses.