It’s a proven fact that all screens give off a decent amount of blue light. Blue light has been shown in some studies to cause eye strain, headaches, and disruption to the body's natural melatonin production — the hormone that aids with restful sleep. This is where blue light glasses come in.
But, what do blue light glasses actually do? The idea behind them is to block a certain percentage of the blue light emitted by screens. If you find yourself staring a screen all day, you need a pair of these!