Should the blue light on the screen be prevented? Where does blue light exist: Wherever there is light, there will be artificial blue light, such as in front of screens, mobile phones, and computer screens. So that's why friends who often watch mobile phones, TV, and computers say they need to wear a pair of anti blue light glasses.

The light transmittance of long wave blue light should be greater than 80%, and this beneficial blue light should be less obstructed. Poor quality blue light glasses lenses do not block much harmful blue light, while beneficial blue light blocks a lot.

Are anti blue light glasses really useful? The blue light energy in the screen is relatively weak, making it unlikely to cause direct damage to the human eye normally. Wearing blue light resistant glasses can have a certain effect, but don't expect too much. Looking at a computer with anti blue light glasses can prevent sudden blindness, which is basically difficult to achieve. The comfort level is relatively high, and the screen will be softer when looking at it, and fatigue will also decrease. If you like to play games and watch computers during normal time, you need to wear it.

The suggestion is that if conditions permit, after staring at the computer for one or two hours, you can get up and move around, take a look at the green outside the window, which will be helpful for your eyes.