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20/20/20

As many of us spend more time looking at computer screens these days, eyestrain is becoming more prevalent.  This is particularly true of children, whose eyes are still developing. To minimize the chances of computer-related eyestrain, screen watchers should remember to blink. Studies show that, when sitting in front of the computer, we blink one-third as much as we normally do. The less we blink, the greater the risk of dry eye and its attendant problems. In addition, the “20-20-20 rule” calls for computer users to take a 20-second break every 20 minutes, during which time they should sit back and focus on an object 20 feet away. Doing so also helps to refresh the mind and body. Excessive near-vision work can result in false (or “pseudo”) myopia, characterized by blurred distance vision caused by overuse of the eyes’ focusing mechanism.