A pair of good sunglasses must block 100% UV rays for you. If they can just block 98 or 99 percent UV rays. No, you should choose the sunglasses that can block 100% UV rays. Besides, polarized sunglasses can filter harsh glare that come from the smooth surface of a road or water. And they can make your eyes feel more comfortable. The color of the lenses is also very important too. Usually athletes will choose the sunglasses that have yellow lenses. And I think brown or green lenses are best for me because they can provide me with clear contrast vision.
You have to choose a reliable brand, do not buy glasses street, the lenses can be made ??of plastic, adequate protection, your sunglasses should: Ã‚Â· Block 99-100% of UV-A and UV-B. Do not distort images or change colors. Have lenses ash, green or brown Ã‚Â· Filter 75 to 90% of visible light. Hope this helps!
There are indeed several factors that you should take into account. Such as, appearance, which could be suitable to your looks and style. Next, you have to care about the protection utility, because sunglasses differ from one another also in terms of lenses, some lenses are of great quality and have better UV protection. Also, you have to consider the price, which takes great stake. Most importantly, before buying what you want, you should carefully check the quality and make sure it is real through checking the serial numbers.
Well, there are many things you should take into consideration. The first one is sun protection, which means that the sunglasses that you choose should be 100% UV protection. The second one is glare reduction. This means that the sunglasses that you choose should be effective at cutting reflective glare from certain smooth surfaces. A pair of polarized sunglasses can do this for you. The third one is that you should choose those sunglasses that have a barrier between the wearer's eyes and environmental conditions. They can help reduce the rate of evaporation of tears and help keep your eyes moist and comfortable. The fourth one is that your sunglasses should reduce headache and eyestrain. The fifth one is vision improvement. But if you don't have any vision problems, you can just buy a pair of plano sunglasses. If you have some vison problems, you can buy a pair of prescription sunglasses. Hope this helped!