outdoors is a kind of protection for your eyes, but experts in ophthalmology emphasize that you must wear qualified sunglasses. A pair of qualified sunglasses must be able to block the passage of ultraviolet rays and have good resolution for traffic signals of different colors. In fact, light-colored lenses are more in line with this requirement. An expert from the YC9712 Men's Sunglasses C1 Gun/Green Eye Department said that in the outpatient clinic, she often met some patients who shed tears and are afraid of light when they wear sunglasses. Most of the sunglasses they choose are red, green and green sunglasses, which are contrary to the light colors advocated in medicine. In fact, brown and light green are good colors for the eyes. Wearing dark-colored glasses will make the eyes in a darkroom environment. The pupils of human eyes will automatically dilate in a dark environment. Long-term pupil dilation can easily cause glaucoma and other diseases; poor-quality sunglasses
can also cause more ultraviolet rays to penetrate the eyes and easily cause sunlight Diseases such as keratitis, corneal endothelial injury, and macular discoloration of the eyeball; darker-colored glasses reduce the eye's ability to distinguish colors, which may cause color confusion and cause traffic accidents. Sunglasses should be worn as much as possible outdoors in summer, but not all situations are suitable. In the shade without sunlight, you can take off your sunglasses and let your eyes rest for a while under natural light. When buying sunglasses, be sure to pay attention to the lens, tag, color and UV index of the product. Every formal qualified product has a certificate of quality inspection, and the merchant should show the relevant certificate when purchasing. The tag on the sunglasses is regarded as the 'ID card' of the product, which indicates the origin of the glasses, and also hides a lot of useful information, such as whether the glasses you are buying are sunglasses or light-colored lenses, resin lenses or other materials... This should not be ignored. In order to prevent ultraviolet rays, it is better to buy light gray, light green, blue gray sunglasses with real sun-shading lenses, because these relatively soft colors will not change color when looking at nature. For sunglasses, the UV index is an important criterion for filtering out ultraviolet rays. At present, the UV index of most sunglasses is between 96-98%, and dark-colored lenses are better than light-colored lenses. Related Reading: Sunglasses Brand Sunglasses Clip
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