The Dimension(clip on) --Frame 5.12 inches--Bridge 0.47 inches --Width of lens 2.32 inches --Height of lens 1.46 inches Why you need to have one? What is blue light?Blue light has the strongest frequency of the visible spectrum, right next to UV light. Its short wavelength and 4high frequency make it highly penetrative, able to reach as far back as the retina in your eyes. Blue light emitted from digital screens .Stare at the computer ,TV or smartphone for a long time in a day?Studies have shown that prolonged exposure to emitted light source - especially High Energy Blue Light - may cause: - Painful or dry eyes. - Fatigue and stress (hard to focus for long periods of time) .- Insomnia (hard to fall asleep or poor sleep quality) .- Poor productivity and performance .- Macular degeneration and other vision conditions. As we are the first generation for using computesr,ipads,smartphones and watching TV in daily life for a long timeWe do not know what would happened to our eyes after 20 or 30 years later since we can not live without electronic products.Wear a corselet on your eyes!------We have been making eyeglasses since 1969.The design for the eyeglasses is according to the somatology, Ergonomic streamlining with comfortable.Ultra light weight.A pair of clip on glasses , only 0.26 ounce.Minimum amounts of color distortion while still providing maximum protection for your eyes.-------I am sure you will love the glasses!
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