Desk. Tuesday , January 16th , 2018 - 01:24:06 AM
Desk top computer use is usually more demanding beginning in the late forties or early fifties. Viewing through the distance portion of your eyeglasses to see just beyond the reading range to the computer screen puts a strain on your eyes by overworking the eye’s accommodative/focusing ability. The amount of lens power necessary to relieve the eyes from the stress is about half the amount of power necessary for you to read with.
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.
Natural wood is by right considered to be the most traditional material for making desks. Of course, wooden desks are not made of one certain wood breed, there are dozens of them. You can choose timber, either very hard (for example, oak or hornbeam) or very beautiful (for example, cherry tree). It’s possible to choose an expensive breed, as mahogany, or cheap pine-tree. Of course, the harder and more beautiful the wood texture is, the more expensive will be a desk, made of it. Desks, made of natural wood, as a rule, look very respectable and they make a room cosy. To be in use for a long time such desks need special care, they shouldn’t be used in a dusty or damp room.
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