How to buy sunglasses in the summer?

It is recommended to choose sunglasses with polarization function, general sunglasses only use the effect of light reduction, because the general lens can not filter light, so it can only reduce the intensity of glare, ultraviolet light, etc., and can not completely block these harmful rays, so its function is only to reduce the damage to the eyes, but the biggest advantage of general sunglasses is good popularity. Because of its polarizing properties, polarized lenses can completely block dazzling glare caused by various factors such as scattering, refraction, and reflection. At the same time, it can also completely block the ultraviolet rays that are harmful to the human eye, so that when people are active in strong light for a long time, the eyes are not easy to get tired, so as to achieve the function of real protection, and can make the things seen more clear and three-dimensional.

In sunlight, our eyes need to adjust the size of the pupil to control the amount of light entering the eye. Polarized sunglasses use a similar working principle to blinds to eliminate glare, making the scene softer and less glaring once it enters the eye. Polarized glasses also filter the glare of parallel sunlight on water, ground, or snow.

For friends who often exercise outdoors, the most suitable sunglasses are polarizers. Chromic lenses are also known as "photosensitive lenses". Transition-changing glasses are made with a patented photochromic dye that quickly activates the color-changing when the lenses are directly exposed to the sun's ultraviolet rays, protecting the eyes.

Oak sells. <> when buying sunglasses, the most important thing should not be to pay attention to whether they look good or not. I think the most important thing is to see if the quality is qualified, and the most important thing is to look at the quality of the sunglasses. Judging the quality of sunglasses, for our ordinary consumers, the main thing to pay attention to:

Whether the light transmittance of the lens is good, whether the lens color is uniform, whether the lens has basic ultraviolet resistance (UV400) function, whether the lens is comfortable and painful after wearing (the main performance of inferior sunglasses), lens material (the performance of sunglasses and glass lenses is better than resin);

Exposure to sunlight in babies plays an important role in preventing myopia, but the sun is more intense in spring and summer. When exposed to the sun, we must protect our eyes. For example, having a baby sit in a stroller, putting down a parasol beam, and wearing a sunshade or sunglasses will protect our eyes by blocking direct sunlight.

Observe the lenses for scratches, impurities, bubbles, and streaks, and inspect the outer packaging of the sunglasses. Regular sunglasses should be marked with the product name, color, diameter, quality grade, manufacturer name, and trademark. Sunglasses with UVA, UVB, and CE markings on the mirror or tag ensure that they block a certain amount of UV rays.

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Control the amount of light that enters your eyes.

If you have more fashion mirror belts, you can buy more cheap ones. If you are driving or something, you can buy some polarizers, but many big-name sunglasses are not polarized, they are basically fashion. In addition, it is also good to dig into some niche design models, and polarized sunglasses use a similar working principle to blinds to eliminate glare, so that the scene is softer and less dazzling when it enters the eyes.

Polarized glasses can also filter the sun's glare in parallel directions on water, ground or snow.

It is not easy to break, but it is less hard and prone to scratches. There are also memory nylon lenses are also a very good choice, ultra-light weight, super optical performance, 100% UV protection. The surface of the regular and excellent lens is smooth, and the strength of the UV protection function of sunglasses without ripples and flaws is mainly related to the material, process and other factors of the lens.

Generally speaking, as long as the UV index can reach more than 96%, even light-colored sunglasses have a good UV protection effect, but the dark-colored lenses will have a better light-blocking effect.

It is easy to deform when heated, PC polarization is suitable for outdoor wear, with the same advantages of anti-ultraviolet glare as CR39, the same resin lens PC should be 30% lighter than the disadvantages, PC dispersion is larger, Abbe number is 33, and the clarity is not as good as resin! **Relatively expensive! Why wear polarized sunglasses?

Because polarized sunglasses can better protect the eyes, effectively block ultraviolet rays, and prevent cataracts caused by ultraviolet damage. And polarized sunglasses on rainy days will make the driver see things more clearly.

The human pupil will naturally dilate in low light, but the inferior sunglasses lens does not have the function of anti-ultraviolet rays, and the enlarged pupil will absorb more ultraviolet rays, which is easy to cause cataracts, solar keratitis, corneal endothelial damage and macular degeneration of the eye. Polarized sunglasses, on the other hand, work similarly to blinds to eliminate glare, making the scene softer and less glare-free when it enters the eyes. Polarized glasses can also filter the sun's glare in parallel directions on water, ground or snow.

In the summer, it is very important to choose the right sunglasses for the right clothes, only in this way can you have the effect of shading the sun and no liquid, so that you can become very cool, and there will be no scratches on the dry things, let alone heat stroke.

It is very important that if you choose the right pair of sunglasses, it will make you look very temperamental, and it will also effectively block the sun's rays.

It is very important to lose the silver, if you choose the right one in this case, then the other party will choose to wear it for a long time, after all, in the summer, most people will choose to choose to talk about the sunglasses, which is also a must-have for everyone to travel.

Cheap sunglasses are not worth buying, because cheap sunglasses are more harmful to the eyes.

It's not worth it. As the saying goes, you get what you pay for, and if you buy a particularly cheap pair of sunglasses, you won't get a particularly good protection.

It's not worth buying, because it doesn't have the corresponding effect at all, and it won't give your eyes a very good protection.

Cheap sunglasses are not worth buying, sunglasses are worn in summer to prevent sunburn and avoid direct ultraviolet rays, while cheap glasses are not of good quality, it is easy to scratch, and even broken lenses, which is easy to cause damage to the eyes, and at the same time, cheap glasses generally do not have the effect of anti-blue light polarization, and will also affect the visual effect.

Of course, you can buy them, because these sunglasses can play a decorative effect and make your eyes look more beautiful.

Not worth buying, cheap sunglasses do not have UV protection, and the sun can even burn the eyes through the sunglasses.

It's good to buy an Armani.

Choose a mirror with UV protection lenses

ReadyRun's good, you can take a look, it's quite suitable for mm belts.

Ray-Ban's, you can come and visit the store!