If you're looking at this product, you already know your eyes are overworked! Focusing on a computer all day can take a toll -- with strained eye muscles, irritated eyes, headaches, fatigue and stress. And any of these can slow down your productivity. Kensington has just the solution at a price you can afford. Their Economy Anti-Glare screen filter helps relieve eyestrain by eliminating 95% of the glare coming from your computer monitor. And it does so without compromising colors or brightness. The screen filter will improve contrast and sharpen text and images. Improving your work environment pays dividends in your productivity.