Buying sunglasses need to pay attention to the service life of the lens

The demand for sunglasses with the arrival of the summer, people became more and more big. Sunglasses are a way to block the sun's rays glasses. Dark glasses and sunglasses, it is under strong light eye protection 'labor protection supplies. Wear this kind of lens can block ultraviolet and infrared light, at the same time, the color of the external environment does not change, only the light intensity change, like a cloudy day, feel cool and comfortable. Put on a beautiful sunglasses not only can add fashionable feeling, can also shade eye. But the fear is that cheap sunglasses is popular in the market, people choose often ignored the quality problem. Ray-ban sunglasses RB3449 men silver/lens dazzle colour blue 004/55 cheap sunglasses popular now in the street stalls, this kind of cheap sunglasses sought after by many people, of which the majority with young people, it is understood that the reason they buy this cheap sunglasses, because their prices are cheaper and more fashionable appearance, also have the customer to buy sunglasses to grey shading, block, but long-term wearing this cheap lenses will not harmful for our eyes, the answer is 'will'. Drive don't wear dark glasses sunglasses factory S9103 sunglasses C01 frame black/lens gradient grey choosing sunglasses, to focus on the 'three'. A look at the label, whether is normal manufacturer production; 2 see if technical parameters, reached the standard of UV protection, for sunglasses, the effect of UV ultraviolet index mean filter, is one of the important standard. Three color, dark brown, light grey, green is good for the eyes. Patients with glaucoma, color blindness, night blindness and optic nerve retinal inflammation of people away from the best sunglasses, moreover, suggest 'motorists', while driving don't wear sunglasses color too deep. Dark glasses will let the driver for emergency response speed to extend 100 milliseconds. Ray-ban RB3016 - M men sunglasses 1182/4 e mu wen finally, needing those who remind everybody is, the life of the sunglasses lenses are generally 3 to 5 years, we should pay attention to timely replacement new glasses, the eye doctor remind, suffering from glaucoma, color blindness, night blindness and optic nerve retinal inflammation best away from sunglasses. Without these eye problems in the regular store had to buy sunglasses, to prevent unnecessary eye damage.
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