1. If blue glasses are made of transparent materials, generally speaking, they can only block about half of the blue light hazard. Only by using colored lenses that filter blue and purple light can we achieve better results. However, this kind of lens will lead to a yellow filter on the scenery seen by human eyes, which will bring inconvenience to practical work and even color difference, and will also affect the visual development of teenagers.
2. For people who use computers or electronic display devices for a long time, anti-blue lenses can effectively prevent some harmful blue light from hurting their eyes and make them more comfortable when working in front of the display screen, but there is no clinical data to prove that it can effectively improve eye pain, dry eyes, decreased vision and fundus lesions.
3. Anti-blue glasses are suitable for wearing when using LED digital display devices such as televisions, computers, tablets and mobile phones. However, it is not recommended to wear anti-blue glasses for a long time in daily life, because anti-blue glasses will filter out some blue light and the picture will turn yellow when watching objects. In a word, qualified anti-blue glasses can reduce the damage of blue light to eyes to some extent.