Ultraviolet rays are invisible killers,
The eyes were exposed to intense sunlight,
The lens in the eye is exposed to too much ultraviolet light
And the fibers harden,
And the damage of ultraviolet rays to human eyes is cumulative,
Some eye diseases will gradually develop,
Such as cataract, glaucoma and so on.
So what color lens can protect eyes best?
1. Green Lens
Green lens can be said to be the representative lens of pilot series. Like gray lens, it can effectively absorb infrared light and 99% ultraviolet light. But green lenses can distort the color of some objects. Moreover, its blocking effect is slightly inferior to that of gray lens, but green is still a good protective lens. Green has the function of regulating eyesight, which is suitable for students or people who are easy to get tired.
2. Grey Lens
The Gray Lens absorbs any chromatogram evenly, so it will darken when exposed to strong light, but there will be no obvious color difference. It shows the true natural feeling and belongs to neutral color system. It can absorb infrared ray and 98% ultraviolet ray. The biggest advantage of gray lens is that it will not change the original color of the scene due to the lens, and the biggest satisfaction is that it can effectively reduce the light intensity. Gray can reduce visual fatigue, white-collar people with more eyes can be considered.
3. Yellow lens
It can absorb 100% ultraviolet light and allow infrared and 83% visible light to penetrate the lens. The biggest feature of the yellow lens is that it absorbs most of the blue light. Because when the sun shines through the atmosphere, it is mainly blue (which explains why the sky is blue). After absorbing blue light, yellow lens can make natural scenery clearer. Therefore, yellow lens is often used as "filter". Yellow is the most sensitive color of visual cells, can improve the sensitivity of vision, amblyopia and other poor vision can be preferred.
4. Pink lens
This is a very common color. It can absorb 95% of ultraviolet light, and some shorter wavelengths of visible light. In fact, this function is similar to that of ordinary uncolored lenses, which means that pink lenses are not more protective than ordinary lenses. But for some people, it's psychologically helpful because they feel comfortable to wear. There are red and green color blindness or red green weak, can choose red lens, it can increase the contrast of red and green.
5. Brown Lens
This kind of lens absorbs almost the same kind of light as the green lens, but absorbs more blue light than the green lens. The degree of color distortion caused by Brown lenses is greater than that of gray and green lenses. Therefore, the satisfaction of ordinary people is also low. But it offers an alternative color choice, and can slightly reduce the halo of blue light to make the image clearer.
6. Blue lens
You can wear sun blue lens when you play on the beach. Blue can effectively filter out the light blue reflected by sea water and sky. Blue lenses should be avoided when driving because they can make us not distinguish the color of traffic signals.
In addition to the traditional sunglasses, the anti blue light glasses with the functions of "anti radiation, anti blue light, anti fatigue and anti ultraviolet" have recently become the choice of many people.
Sunlight includes seven bands of "red, orange, yellow, green, blue, indigo and violet". Blue light is one of them, which has relatively high energy.
Blue light is a kind of normal visible light in daily life. The wavelength is about 400 nm, which falls right in the center of the eye, that is, the fovea. And this part itself is sensitive to strong light, it is mainly optic vertebra cells. If it is stimulated by blue light, a relatively strong light, for a long time, it will suffer some damage.
For the public's concern about the harm of blue light to eyesight, anti blue glasses have no significant effect on the protection of vision. To protect eyesight, we should pay attention to the health of eyes, try not to use electronic products for a long time, and do not use eyes close to each other for a long time.