According to the standard classification, according to the different light transmission ratio (light transmittance) of the discount prescription glasses is divided into three categories: light-colored sunglasses, shading sunglasses and special purpose (such as skiing, climbing and going to sea, etc.) sunglasses, from the appearance of the color is deepened in turn, and the filtering effect of ultraviolet rays is gradually enhanced.

For people who only need to block the general sun or take sunglasses as decoration, choose light shades; For those who need to wear sunglasses in places where the sun is strong and suffer from the above eye diseases, they should choose sunshade sunglasses; People who are engaged in special occupations (such as skiing, climbing and sailing) choose special purpose sunglasses.

It needs to be reminded that friends who ride or drive, do not choose lenses that are too dark, so as to avoid accidents because they cannot distinguish traffic signals.

In short, everyone should choose sunglasses according to their own specific circumstances and needs, patients with eye diseases are best to choose sunglasses according to the advice of ophthalmologists, so as to protect health, but also bring beauty and comfort.

What color are your sunglasses?

Gray - gray lens is the most common, it can balance absorption of any spectrum, watching the scene will only be darkened, there will be no obvious color difference, can show a more real natural feeling, suitable for most people.

Brown - brown lenses can filter a lot of blue light, air pollution and fog wear effect is good.

Green - green lenses can increase the green light reaching the eyes, so that the wearer has a cool and comfortable feeling, suitable for people whose eyes are easy to fatigue.

Silver - Silver mercury lenses can absorb and reflect more solar radiation, suitable for outdoor sports people.

Red and blue - red and blue lenses have a poor protection effect on the eyes, red light blocking effect is poor, blue lenses promote blue light to stimulate the eye, so it is not recommended for everyone to choose, but can be used as decoration.

When buying sunglasses, try to choose regular merchants or e-commerce to buy. Understand the return time and return conditions of goods in advance to avoid trying discomfort and merchants refusing to perform after-sales returns. Pay attention to the anti-counterfeiting mark, production certificate and other information on the product packaging. Check the integrity of the product after purchase, whether there are scratches in the details, whether the lens is worn and so on. Avoid the situation that the merchant refuses to acknowledge after leaving the cabinet.