Desk. Tuesday , February 13th , 2018 - 18:48:04 PM
When setting up your workstation, the most important measurement will be the desired height of your computer desk. Once you have your desk configured properly, you then can adjust the computer desk chair to the height of your workstation. For example, your elbows should be at a 90-degree angle when you place your hands on your desk. If they are not, adjust your chair up or down until your elbows are the right angle. You also want to make sure you are allowing your gaze to easily fall into the middle of the computer screen. You may be unconsciously straining your neck if your gaze falls to high or to low.
Working at a desk top computer over fifty years of age with your general purpose prescription eyeglasses can be challenging on your eyes. The eye’s focusing ability is under a strain to keep the content on the screen clear. Just because you can see the computer screen clearly through the distant portion of your glasses doesn’t mean you are not taxing the eye’s focusing ability to maintain a sharp focus. Also, lifting your chin up to see through the mid portion of your progressive style lenses will have consequences on your neck and back due to poor ergonomics. The reason you are using a bifocal is to see at close reading distance clearly for extended periods of time.
Your bifocal add power allows your eyes to focus on reading with less accommodative (eye muscle and lens focusing ability) effort and greater comfort for long periods of time more efficiently. A dedicated pair of computer glasses or a computer clip-on will do the same thing for desk top viewing. Otherwise, looking at a PC monitor through the distant portion of your bifocal or progressive lenses is like walking versus riding the bicycle to work example; you my be able to do it but you eyes will get tired sooner. It has always been my belief that when your eyes get tired, so does your body. You now have a choice to beat sleepiness while working at the computer, and re-energize your eyes with better vision and with less physical stress on your posture.
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