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1. The human body has an instinctive response to self-protection. When the eyes encounter strong light, the pupils will naturally become smaller, which reduces the ultraviolet energy entering the eyes. Once wearing glasses without UV protection, the pupils will be dilated, plus this This kind of glasses does not have the effect of isolating ultraviolet rays. At this time, the eyes are wide open, and the damage to the eyes can be imagined if ultraviolet rays enter.
2. Sunglasses can block ultraviolet rays because a special coating is added to the lenses. Inferior sunglasses not only can Damage to the eyes. In addition, inferior lenses also cause people to have symptoms of visual fatigue such as nausea, forgetfulness, and insomnia.
3. The color of the sun glasses is light gray, brown or light smoke as the best, followed by green, amber, blue, etc., and red is only used for sunbathing or snow.
4. It is best to use polarized sunglasses in a car, because they can reduce the glare.
5. If after you put on sunglasses, others can see your eyes very clearly, then your lenses are too light.
6. When the sun goes down, it is best to remove the sunglasses, otherwise, our eyesight will be affected in places with weak light.
7. Go to a regular spectacle shop to choose sunglasses with anti-ultraviolet function produced by regular manufacturers.
8. Pay attention to the surface of the lens when choosing.
9. When buying sunglasses, you can judge by whether the vision is clear. If you want to buy high-quality sunglasses, the only thing you can do is to buy sunglasses at optical shops and regular optical shops.
10. Face modification:
①Round face: You need straight or angular frames to weaken your contours. Please use dark, subtle color lenses to reduce obesity and make your face look more exquisite.
②Square face: In contrast to the round face, you need some rounded, streamlined frames to set off your unruly extraordinary temperament.
③Triangular face shape: Please avoid using large and square frames as much as possible, because this will make the face more wide and narrow at the bottom. It is best to use thin and round frames with bright colors.
④ Oval face: You are born to be very suitable for sunglasses. No matter what style is very suitable for you, just pay attention to the size ratio.
⑤Rectangular face: Sunglasses with a large frame are most suitable for you, which can make up for the shortcomings of face length and make the face look more delicate, and the color is mainly dark.
Many famous brands use sunglasses as part of their product lines. Many sunglasses manufacturers also advertise the characteristics and special texture of their products. Depending on the characteristics and brands, the price of sunglasses will fluctuate from less than 20 dollars to several hundred dollars.
In addition, there will be counterfeit goods on the market. When you visit discount stores and flea markets, you will find vendors selling counterfeit sunglasses that mimic high-priced brand sunglasses. They look exactly the same in appearance, but the price is far lower than the real ones. When you buy those real brand sunglasses instead of counterfeit ones, what you spend a lot of money to buy is just one brand, or is it the real essential difference?
The biggest problem with cheap sunglasses is the way the lenses are made. They simply coat a layer of colored film on ordinary plastic. Even though the colors and frames of these counterfeit goods are similar to some famous brands, the actual lenses are completely different.
