How To Reduce Computer Eye Strain.
Once upon a time, there were three fields of vision. Normal vision was considered a range around twenty feet away and with ideal vision you could see everything there clearly. When humanity was hunting to survive, seeing farther way became important. With the invention of the written word and, especially, printed text, the ability to see close objects became essential. With the rise of technology tends to come new problems and for computer users, one of the most serious is computer eye strain.
Computer eye strain is a condition reported by fifty percent of computer users. Computer eye strain can manifest itself in symptoms as benign as slightly dry or itchy eyes to the more extreme migraine headaches. There are several causes of computer eye strain.
The primary cause of computer eye strain is that looking at a computer monitor compels the user to focus on a point in space that they are not used to focusing upon. Because the average monitor is more than an arm’s length from the user, but not much further than that, their eyes start by focusing close – as if you were reading a book – and then stain out from that close focal point. This creates stress on the eye as the muscles around the eye continue to adjust and hold the eye in a fashion it is not accustomed to. For this symptom, the best possible treatment is visiting an ophthalmologist and getting prescription computer glasses.
Another significant cause of computer eye strain comes from glare. Glare occurs when you have your computer monitor angled such that it reflects a harsh or intermittent light source. The reflection has the same effect as flashing a light directly in your eyes. Testing for glare is easy: turn your monitor off and see if any light reflects off the screen. For glare from primary light sources – like a desk lamp or overhead lighting that hits your monitor at a problematic angle – the solution may be as easy as raising or tilting your monitor or repositioning the light source so the glare is no longer evident on your screen. For intermittent light sources – for example, if your office is oriented near a door that has a red-lit exit sign that brightly reflects each time someone opens that door – you may have to reorient your work station to reduce glare. Glare frequently causes headaches and eye aches.
The final significant cause of computer eye strain is improper lighting. If you use your computer in a room that is too dark, your eyes become confused looking at a bright monitor. A dim room is the optic equivalent of listening to someone whispering when they suddenly start to yell. Your eyes acclimate to the darkness of the room and figure they need to dilate to let more light in and then you bombarded them with light from the monitor! You may reduce this form this cause of eye strain by turning on more lights or reducing the brightness on your computer monitor.
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