Size DescriptionA - Total Width - 5.
Computer glasses are special-purpose eyeglasses meant to optimize your eyesight when you're looking at digital screens. Computer Glasses Blue Light Blocking Glasses - Reading Glasses - Brown, +2. How does it work? 5" (145 mm) They're designed to: reduce glare (a major cause of eyestrain), increase contrast, and maximize what you see through the lenses making it easier to look at a screen for longer periods of time.It's not unusual to spend several hours looking at your screen each day.