I know computer glasses very well. I have two pairs of computer glasses. Computer glasses are designed to relieve computer vision syndrome (CVS). What is CVS? It is a syndrome which may include eye strain, blurred vision, red eyes and other symptoms. These symptoms are caused by visual demands of computer work. If you suffer from eye strain or blurred vision after computer work, you may need to buy a pair of computer glasses. The people who are under age 40 may need computer glasses and the people who are over age 40 may need computer glasses too. Computer screens usually are positioned 20 to 26 inches from the user's eyes, but farther away than reading vision. Computer glasses can optimize your eyesight when viewing your computer screen. You can have a comprehensive eye exam to rule out vision problems and update your eyeglasses prescription.