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Computer glasses are well received in recent years, due to the fact that there are more and more people work with a computer all day long. To protect their eye health, computer glasses are invented to keep off the harmful radiations from the computer. However, one factor that holds people back to buy them is the high cost. Then people would wondering where to buy cheap computer glasses. Then answer is from online optical stores.

Computer glasses are cheap online just like all the other products sold online. Online shops enable more computer users to preserve their eye health. Let's first know why computer cause eye strain and other complications. There are reasons for that. Ergonomics experts - the folks who measure how your body performs tasks - note that most computer screens sit 20 to 26 inches from your eyes. Your eye doctor calls this range the intermediate zone of vision - closer than distance vision (like when you drive), but farther away than reading (your "near" vision). Most people under age 40 who wear glasses get them to correct their distance vision. Those of us over age 40 often get eyeglasses to correct the onset of a condition known as presbyopia - the loss of focusing ability that's normal as we age. The problem is, eyeglasses made to correct either of these conditions don't address what's happening in the intermediate zone of vision - that space between you and your computer screen! Even bifocals, trifocals and progressive lenses aren't made for computer-range vision.

Therefore, Without computer glasses, people often lean forward or backward to compensate for the visual range. So you get to the end of your day not only with the symptoms of CVS, but you get sore shoulders, a backache or a sore neck as well!

Recent research has supported the use of computer glasses. The University of Alabama School of Optometry studied the vision of computer users ages 19 to 30. Study participants were chosen randomly to wear either computer glasses or non-corrective eyeglasses. The researchers found that even when CVS symptoms weren't reported, workers clearly showed differences in their productivity and accuracy.

The strain on your eyes from working on a computer is a real condition, and it even has a name: computer vision syndrome (CVS). Experts say that looking at computers simply requires your eyes to work in ways that other activities don't. Therefore, computer glasses that are cheap online should be your best choice.