Tips to identify anti-blue light glasses

With the development of science and technology, electronic products are becoming more and more popular in people's lives. But nothing is absolutely good or bad. On the one hand, the popularity of electronic products has accelerated the speed at which people acquire knowledge. It is conducive to people's work and study. On the other hand, facing electronic products for a long time is extremely harmful to people's eyes. Even primary school students wear glasses now. Why are electronic products so harmful to people's eyes? Because the screens of electronic products emit blue light that is harmful to the eyes. How to block these blue lights? There is a pair of glasses that has these functions. So how do you tell the difference?

Method steps

1. The market for anti-blue light glasses is full of mixed products and there are many types. Professional digital protective glasses are more popular in the market in 2013. Due to the absorption design of the lenses, they completely block harmful ultraviolet rays below 400nm and absorb high-energy blue light of 400-500nm, thus preventing harmful light from causing damage to the eyes. Therefore, professional digital protective glasses are not just blue light protection glasses, but professional protective glasses that combine blue light protection, radiation protection, and UV protection.

2. There are many layers of film on the anti-blue light glasses on the market, including amethyst film, gold film, blue film, green film, yellow-green film, etc. In fact, this film layer has little effect on the anti-radiation effect, but the inner film with high strength and chemical resistance is more important. It can directly penetrate the glare shot from the oblique rear to the inner film through the film, blocking the harm of reflection to the human eye.

3. The colors of anti-blue light glasses sold in many places now are different. But when viewed with the naked eye, the lenses of real blue light blocking glasses appear to have a special faint yellow light. More importantly, real blue light blocking glasses need to be tested by an authoritative organization.

4. If it is a rough inspection, we can use a grating spectrometer, and we can also use a banknote detector light to test the anti-blue light effect of the lens. As for UV protection, most eyewear stores have testing equipment that can easily identify whether it is UV protection.

5. Of course, in order to better protect your eyes in front of the computer, we need to block blue light while eating more vegetables, supplementing lutein, multivitamins and zeaxanthin to enhance the antioxidant capacity of the eyes and thus protect our eyes.