The Gunnar Optiks INT-06307 Intercept Advanced Outdoor Glasses are the only eyewear recommended by doctors to protect and enhance your vision when viewing digital screens in bright sunlit environments. Eye strain, visual stress and dry eyes can be caused by extended periods of digital screen viewing and exposure to the sun. Stay focused and perform more efficiently throughout the day with these stylish kryptonite frame glasses designed to improve visual performance, enhance focus and reduce eye strain for those with 20/20 vision. The Intercept retro classic frame fused with futuristic technology completes the line between style and science. The Amber tint lens makes these glasses perfect for computer and video gaming as it increases gaming precision and graphics, while the wide format lenses create a panoramic viewing field for high resolution viewing. Their 59-millimeter wide lens design frames your face to protect your eyes from dry air currents, effectively preventing irritation. GUNNAR"s i-AMP lens technology is specifically engineered to filter out the harsh, high-energy part of the spectrum, reduce digital eye strain and enhance viewing detail so you can stay focused and perform more efficiently throughout the day. The Intercept"s 132-millimeter temples, full rim frame and multi-barrel hinges are composed of injection polymer and designed to generate proper strength and optical stability. This 35-gram lightweight construction with proper weight balance and curved 18-millimeter nose bridge guarantees long lasting comfort without pressure points or eye strain. The Gunnar Optiks INT-06307 Intercept Advanced Outdoor Glasses come with a (1) year limited warranty against manufacturing defects. The ultimate result is improved clarity, focus and performance that meet the demanding visual needs of a new generation. Visit www.amazon.com/gunnaroptiks for more information on Gunnar Optiks and our extensive line of products.