The key to choosing sunglasses depends on the lens

u003cbru003eWhether a pair of sunglasses is good or not, whether it has the effect of anti-ultraviolet rays, the key to these questions depends on whether the lens quality of the sunglasses meets the requirements, then how to distinguish whether the lens of the sunglasses is qualified? How to choose sunglasses? The editor will provide you with references from three aspects: lens quality, lens color, and lens depth. YC9702 Ladies Sunglasses C3 Black/Lens Colorful Blue 1. Lens quality. The surface of the lens should be smooth and free of wear marks, streaks, and bubbles. Lay the lens flat and see from the horizontal direction that there is no warpage of the lens. Put on the glasses, aim at the horizontal and vertical objects 2 meters in front, such as doors, windows, etc., and move them up and down, left and right. If the objects you see are not deformed, it means that the lenses are not distorted. YC9708 Universal Sunglasses C7 black frame silver legs / lens gray 2, lens color. The color of the lens is light gray, brown or light smoke as the best, followed by green, amber and so on. Gray lenses will not interfere with our perception of external colors. The use of blue lenses should be avoided, as it will make us unable to distinguish the color of the traffic signal. It is best to wear polarized glasses in the car, they can reduce the glare. YC9712 men's sunglasses C1 gun/green3, color depth. If you put on sunglasses, others can see your eyes clearly, then your lenses are too light. Related reading: Sunglasses with glasses
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