Thursday 8 December 2016

Computer Vision Syndrome - The 20-20-20 Rule



Research is showing a rise in the detection of visual problems because of the number of hours spent in front of a laptops, computers, smartphones, gaming systems and television. This can put a lot of strain on our eyes and cause eye fatigue. When using your screens give your eyes a break. Uncorrected hyperopia, myopia ,astigmatism and wearing multifocals can all make computer use less comfortable and efficient. Depending on your condition, your eyes could be exerting extra focusing effort or be forced to work harder to maintain a clear image when viewing the screen. Even people with perfect vision may experience symptoms such as blurred vision, eyestrain and headaches with improper computer use.
To ensure comfortable and efficient computing, Use the 20-20-20 rule.
-Every 20 minutes take a 20 second break and focus your eyes on something at least 20 feet away (the water cooler, possibly?). This will give your eyes a much-needed break and reduce some of the symptoms mentioned earlier.
-Position your screen about an arm’s length from your eyes and 20 degrees below eye level.
-Set colour and contrast tones to suit your eyes and match the brightness of your screen with your surroundings.
-Minimize reflected glare on your screen by using dimmer switches on lights and a protective anti-glare screen cover. Also consider positioning your screen so that it sits perpendicular to windows and other bright light sources. If you are having trouble locating the source of the glare, turn off your monitor to reveal a darkened screen and tilt/swivel your monitor until the reflection disappears.
-Keep your screen free of fingerprints and dust , as both can reduce visual clarity.

-Remember to blink! Did you know that on average we blink 12 times per minute, but when we’re on the computer, we only blink five times per minute? That can add up to dry eyes. Relieve the discomfort by using artificial teardrops or gels and remembering to blink. Consult your eye doctor (ophthalmologist or optometrist ) to determine which eye drops are best to relieve your dry eyes.
-Ask for anti-reflective coatings on the lenses of your glasses, which can be applied at the time of manufacturing, which allow for more comfortable viewing of screens, fluorescent and LED lights. Your eye doctor will talk to you about eyewear designed specifically for computer use.


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