When you reading this article ,your eyes must suffering the blue light from a digital screen,no matter is a smart phone or a computer . There is a fact that we can not get rid of 3C in modern life ,that means we can not get rid of blue light either .
What is blue light ?
Light with blue wavelengths—which are supposedly beneficial during daylight hours because they boost attention, reaction times, and mood. However, these lights are great for the daytime because they keep us awake, and bad at night because they often impede sleep .
What eye damage caused by blue light ?
Continued exposure to blue light over time could damage retinal cells and cause vision problems such as age-related macular degeneration. It can also contribute to cataracts, eye cancer and growths on the clear covering over the white part of the eye.
How to reduce the blue light damage caused by 3C products ?
1. The easy way is to wear a anti-blue light glasses
2. Take regular breaks using the "20-20-20" rule: Every 20 minutes, shift your eyes to look at an object at least 20 feet away for at least 20 seconds.
How to test the quality of your anti-blue light glasses .
1.Prepare an anti-blue light test pen and a test card .
2.Put your glasses on the test card .
3.Use test pen to irradiate on the glasses .
4.Check the light point on the test card : If you can hardly see the light point on the card ,then congratulation to you ,you have a good anti-blue light glasses .
Do remember :No matter how good your glasses is ,we have to take regular breaks when using eyes .