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Your sunglasses really works?

by:Eugenia     2020-07-24
We recommend you in the back of many types of sunglasses, also introduce the method to detect polarized sunglasses, but there are still a lot of people said they choose sunglasses and seems to be able to keep out ultraviolet ray, the protection for your eyes are also small, sunglasses what's the problem? Buy sunglasses really works? With these questions, take a look at some sunglasses factory of sunglasses for you, hope I can help you buy for your sunglasses. Recommended reading: choose the sun glasses have a university asked, first to see if the lens has a scratch, bubble, impurities, stripes, check the packing for sunglasses, regular sunglasses should be marked with name, color, diameter, quality levels, production factory name and trademark, the mirror or tags are marked as both UVA and UVB rays and CE mark sunglasses can ensure that block uv. Second, try to put on have the feeling of dizziness, headache. Now there are some marked degree of myopia sunglasses on the market for sale, for ordinary consumers, is best not to choose this prescription sunglasses. Three, use sunglasses two horns on the fluorescent lamp in hand, let the mirror reflective article gently rolling, if it is found that mirror the daylight lamp shades appear wavy, twisted, prove that the lens is not flat, the mirror can damage eyesight. Four, the lens should level off, through higher acuity, sun lenses made of glass and resin, and the best sun glasses polarized lens should be used. Five, the colour of the sunglasses in addition to according to their skin color, face, dress collocation, still should choose according to in and out of place. In general, black, dark brown, grey filter effect is good; Grey lens for any chromatography can balance absorption, scenery will only wear after see dark and do not have clear off color, Dark brown lens can filter out a lot of blue light, which can improve visual contrast and clarity, under the condition of air pollution is serious, or foggy wearing effect is a plus. Six, wearing sunglasses in addition to reduce glare, make the eyes comfortable outside, the main purpose is to prevent ultraviolet damage to the eyes, and whether the lens color and UV protection are two different things, even if the lens color deep, also won't be able to effectively prevent UV, UV resistant are marked so be sure to choose the lens. Usually sunglasses UV index at 96% - 98%. Seven, the classical optical shop will have sunglasses uv resistance ability of the size of the instrument, through this test, you can know whether the hands of the glasses is helpful to eye health. Sunglasses to protect his eyes is very big, and not qualified sunglasses on the market will only waste our money, for we don't have too big significance to protect his eyes, so only choose the useful and correct sunglasses, in order to make us happy travel, in the hot sun is not the sun glasses, you not to buy a pair of regular sunglasses sunglasses factory!
related: sunglasses myopia polarized sunglasses
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