How to choose sunglasses? _Sunglasses knowledge_
Sunglasses are now a kind of UV protection equipment that many people prefer, and they are also a good decoration. But if you want to choose a suitable pair of sunglasses, you need to know some information about sunglasses to make a better choice. How to choose sunglasses? Let’s take a look at it together. Even if the glasses shop choose the same style, there will be a certain difference in price. A pair of high-quality sunglasses cannot be bought at the price of a roadside stand. If you choose to buy good sunglasses, you must choose the platform to buy. Whether it is online purchase or physical store purchase, reliable guarantee, perfect service and high credibility are all necessary for a regular optical shop. I recommend everyone to go here. There are dozens of chain stores with a high reputation, and the price is relatively cheap, and the quality and other aspects are guaranteed. The choice of color The depth and brightness of the color have nothing to do with UV protection. UV protection is still determined by its material. So don't think that the darker the color, the better the UV protection effect. This is wrong. The depth of the color will only affect the amount of light transmission, the light color filter is small, the color deep filter is more, if it is particularly dark, it will also affect the vision and weaken the color perception. Generally speaking, black, brown, and gray filter effects are good; gray lenses can absorb any color spectrum, and there will be no obvious chromatic aberration in the scene. Brown lenses can filter a lot of blue light, improve clarity and contrast, and when air pollution is serious and more In the case of fog, the wearing effect will be better. In addition, the color of sunglasses also needs to be selected according to the individual's skin color, face shape, dress and occasions. Regardless of whether it is the face matching of men's sunglasses or the face matching of women, the effect of glasses on the face shape must be considered. If the choice of anti-ultraviolet is mainly anti-ultraviolet, you must choose the lens with anti-ultraviolet logo UV function. Generally speaking, the UV index of sunglasses is between 96% and 98%. How to choose sunglasses for myopia Most sunglasses are flat, and if you are nearsighted, if you want to wear sunglasses, if the degree is particularly low, you can choose flat sunglasses. There are also sunglasses for myopia, if you need to wear sunglasses with a degree If you want, you can go to the optician to make a special order. The condition is that your degree is not too high; if the degree is relatively high, you can choose the kind of sunglasses clip, which can be clipped on the glasses when needed, and the operation is very convenient. Observe the sunglass lens. A good pair of sunglasses has a smooth lens surface to see things clearly. You can check the lens under the light of a light bulb to see if there are steam, bubbles, and various residual flaws and defects on the lens. These factors will affect its function.