Views: 201 Author: Site Editor Publish Time: 2021-05-09 Origin: Site
With the gradual popularization of electronic products, great changes have taken place in the use of eyes compared with those of decades ago. People at that time used to work at sunrise and rest at sunset, living a regular life. It does not need any sleep aids products at all, and there are fewer myopic people.
In recent years, many people work with computers and still need‘996’with the wide application of various electronic products and the change of people's living habits and environment. Back home from work, there is a bright light in the living room, a desk lamp and computer on the desk, and mobile phones, tablet computers and other electronic products constantly emitting high-energy blue light. The huge pressure in the society also means that the eyes have to work hard. The habit of watching mobile phones from close distance makes eye fatigue more likely to happen. Myopia, dry eye, eye fatigue, insomnia and other problems are increasing year by year, which seriously affect people's health.
Therefore, people focus more and more on the health problems of the eyes. If eyes are wanted to be protected from blue light in the life, first of all, attention should be paid to avoid direct exposure of eyes to high-energy blue light, thus blue ray anti glare glasses are also popular.
So, why can anti blue glare glasses protect eyes and reduce injury? What is the difference between it and ordinary glasses?
Anti blue lens glasses is a kind of glasses that can prevent blue light from irritating the eyes. Special anti blue ray spectacles can effectively isolate ultraviolet and radiation, and can filter blue light. It is suitable for watching computer, TV or mobile phone. And ordinary glasses are only for improving vision problems, including myopia, hyperopia, astigmatism, presbyopia or strabismus, amblyopia, etc., to protect the eyes or for decorative purposes.
The most intuitive identification method of the two can be distinguished by lens color. According to the principle of complementary color of light, the lens that can effectively block blue light must be yellow green. But some trendy blue light glasses are dark yellow, so it should be paid attention to. This kind of dark yellow blue light spectacles can block the blue light, but the transmittance is too low, which will make the color of the things that the eyes see seriously distorted. While ordinary lenses are transparent and colorless.
Another difference is that ordinary lenses do not have the effect of blocking blue light, which is the fundamental difference between blue light protection glasses and ordinary glasses. Ordinary glasses are used to correct a variety of vision problems, including myopia, hyperopia, astigmatism, presbyopia or strabismus, amblyopia, etc. But how to judge whether a pair of glasses has the function of blocking blue light?
A lot of salesmen in glasses stores will do experiments for people with laser pens and UV test cards, but this method of applying these tools to detect blue ray lens glasses is unscientific. The light emitted by a laser pen is generally true, but it is ineffective to detect blue light with it. Taking advantage of the principle that the emitted wavelength is shorter than 400-450 nm, it gives people the illusion that blue light is blocked. In fact, this is only a means they use to mislead consumers.
If it needs to be known whether the glasses are really anti blue rays, the professional and authoritative spectral detection equipment can be applied to detect. Moreover, the best blue light shielding rate is between 60% and 70%, which is the closest to the sunlight and the most comfortable proportion for the human eye.
In general, anti blue light glasses and ordinary glasses are mainly different in function and use scenarios. Ordinary glasses can be worn when needed. But anti blue light glasses are worn when electronic products are utilized, which can filter blue light to protect eyes. They do not need to be worn everyday.
