There are also university questions about choosing sunglasses

u003cbru003eSpring is here, can sunglasses be far behind? The sun is getting stronger and stronger. For those who love beauty and like to go out, sunglasses are essential. A suitable sunglasses can not only shield us from the sun and resist ultraviolet rays, but also have the more powerful function of concave shape. It is simply a good product for home travel. Recommended reading: Are you ready for a new pair of sunglasses in 2018, but do you know how to choose a pair of 'healthy' sunglasses? If you don't know, let's take a look! 1. Look at the lens to observe whether the lens has problems such as scratches, impurities, bubbles, stripes, etc. At the same time, the lens should be flat and high in transparency. The best sunglasses lens is a polarized lens (precision synthetic resin). Facing the fluorescent lamp. Hold the two corners of the sunglasses against the fluorescent lamp, and let the reflective strip of the mirror roll smoothly. If you find that the fluorescent lamp shadow reflected by the mirror is wavy, twisted, etc., it proves that the lens is not flat and will damage your eyesight. 2. Put on glasses and sunglasses to try to see if you feel dizzy or headache, because there are some sunglasses with prescription on the market now. If there is no guidance from professional medical professionals, don't choose it lightly. 3. Look at the labels on the outer packaging of the observation glasses and the lenses to see if they are marked with anti-UVA, UVB and CE marks. 4. Look at the color First of all, everyone needs to know that the shade of sunglasses has nothing to do with the ability of the lens to absorb ultraviolet rays, and the ability to resist ultraviolet rays only depends on the lens material. So is the darker the better? Not necessarily. In summer, it’s best to choose brown or brown colors. Most drivers choose brown glasses. Although blue lenses look good, they are not suitable for wearing under strong sunlight or strong light. Not only can they not block the sunlight, they can also harm the eyes. There are so many knowledges about choosing sunglasses. Have you been overwhelmed and want to buy a pair of sunglasses? Glasses offer many choices, you can choose as much as you want. Related Reading: Fashion Sunglasses Sunglasses
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