With 31 percent of people over the age of 18 saying that they spend an average of five hours daily on a computer, tablet, or cell phone, it is no wonder that eyestrain has become an even greater problem. As computer users’ eyes not only stay focused for long periods of time, their eyes must also remain converged (moved inward). Reduced blinking makes matters even worse. As a result, focusing fatigue and convergence fatigue lead to eyestrain and blurred vision. Unfortunately, these problems cannot be adequately addressed with regular prescription lenses or reading glasses. The best solution involves the use of single-vision eyeglasses that are specifically prescribed for computer and desk work. To do specific work, specific tools are needed. To better focus their eyes on computer screens or smartphones, desk workers who already wear glasses may avail themselves of progressive lenses that have a limited amount of added magnification for intermediate and near vision. Computer screens have become an integral part of our lives. Many of us use computers at work and home, and more and more people are reading books on tablet readers. Staring at computer screens can take a toll on your eyes.