What are yellow sunglasses for 2
In the previous article, we discussed “What do I need to know before buying prescription eyeglasses?”. In this article, let’s talk about “What are yellow sunglasses for?”.
What is the role of yellow lenses
Yellow lenses can absorb 100% of ultraviolet rays, but infrared rays and 83% of visible light penetrate the lenses. 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 expressed in blue light. After the yellow lens absorbs blue light, it can make the natural scene more clear. Therefore, yellow lenses are often used as “filters” or used by hunters when hunting. However, no one can prove that the target shooting performance is better because the shooter wears yellow glasses.(post.koalaeye.com)
Where are the yellow lenses suitable for
Strictly speaking, yellow lenses are not classified as sunglasses lenses because they hardly reduce visible light. Wearing yellow lenses during the day does not have a good shading effect, but its bright colors are a sign of fashion. Therefore, some young people wear sunglasses with yellow lenses as decoration. But in the foggy and twilight hours, the yellow lens can improve the contrast and provide more accurate vision. It can also be used as night vision goggles at night, but it is best to avoid long-term use. Yellow lenses are also suitable for shooting, skiing, driving in fog, and other occasions.
Lens color of sunglasses
When going out in summer, sunglasses are almost a must-have item. Among the various styles and lenses in the optical shop, how do you choose a pair of sunglasses that suits you? Wearing sunglasses is not just to see whether the frame matches the face shape, the color of the lens does not match the skin tone, but more importantly, the degree to which the sunglasses block harmful light. At present, many consumers have a common misunderstanding that the deeper color for the lens, the better protection for people’s eyes. However, the resistance to harmful light has nothing to do with the shade of the lens but is mainly related to the material and film layer. Visible light and invisible light can cause damage to human eyes. Generally, dark-colored sunglasses can block some of the damage to the eyes, but it is difficult to block harmful rays such as ultraviolet rays and blue light. If the harmful light cannot be blocked, dark lenses will increase the damage of the harmful light to the human eye structure and induce glaucoma.
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