The Gunnar Optiks HAU-00101Z Haus Advanced Computer Glasses are the only eyewear recommended by doctors to protect and enhance your vision when viewing digital screens at home or in the office. Eye strain, visual stress and dry eyes can be caused by extended periods of digital screen viewing and office lighting. Stay focused and perform more efficiently throughout the day with these stylish onyx frame glasses designed to improve visual performance, enhance focus and reduce eye strain for those with 20/20 vision. The Haus design uses European hand-crafted materials melded into micro-forged modernistic detailing; the Acetate temples with inner bendable cores provide a customizable fit. The multi-layered acetates also catch and reflect light creating depth and stylistic detail. The Amber tint lens makes these computer glasses perfect for computer and video gamers too as it increases gaming precision and graphics. Their 53-millimeter wide lens design frames your face to protect your eyes from dry air currents, effectively preventing irritation. GUNNARs anti-glare lens coating is specifically engineered to filter out the harsh, high-energy part of the spectrum, reduce digital eye strain and enhance viewing detail. The Hauss 140-millimeter temples, full rim frame and multi-layered acetate composition are designed to generate proper strength and optical stability. Weighing in at only 30-grams, these lightweight glasses are properly balanced to reduce pressure points and combat eye strain. Keep your glasses in place with the 15-millimeter nose bridge and spring hinges with a measured flex rate. Micro-engineered locks securely retain the lenses without undue stress or distortion to the optics, while the one piece front construction eliminates all welds, screws and other potential points of failure. The Gunnar Optiks HAU-00101Z Haus Full Rim Advanced Computer 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.