Take a break

If you work long hours in front of a screen in artificial light, you are increasing your chances of becoming nearsighted, according to Dr. Bert. Take regular short breaks away from the screen and walk around the office to exercise your eyes as well as your legs. If possible, alternate your work duties so you reduce the length of periods spent in front of a screen. And make a determined effort to get out of the office at lunchtime. One way to remind yourself to take breaks? Set an alarm. Time it to beep every 30 minutes to remind you to look up and away from your computer, preferably at a distant point for at least 30 seconds. Learn about this common eye condition.