You Have Computer Vision Syndrome

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<ul><li><p>8/3/2019 You Have Computer Vision Syndrome</p><p> 1/6</p><p>You Have Computer Vision Syndrome!</p><p>89</p><p>What Is Computer Vision Syndrome?</p><p>Today, millions of people all over the world are affected byComputer</p><p>VisionSyndromeorCVSwithout them realizing it. I am a full time work at</p><p>home person who spends more than 10 hours a day on my PC. Although</p><p>some people claim that there is no scientific evidence that computer</p><p>screens are harmful to the eyes, experts believe that anyone who stares at</p><p>a computer monitor for more than two hours a day is likely to experience</p><p>CVS or Computer Vision Syndrome to some extent. I think I do experience</p><p>it sometimes. So, if you spend more than 2 hours a day on your computerits time to have a look at your eyes.</p><p>Computer Vision Syndromeis the term used to describe a variety of</p><p>vision related symptoms andCVSaffects mental and physical well being</p><p>and impacts productivity.</p><p>(Note To My Stumbler Friends : Too much Stumblingcauses CVS!)</p><p>Symptoms Of Computer Vision Syndrome (CVS)</p><p>Double Vision or DiplopiaDouble vision or Diplopia is the perception of two images from a single</p><p>object. The images may be horizontal, vertical, or diagonal. Although many</p><p>other reasons like head injuries, intoxication from alcohol, staring too long</p><p>at yourcomputer screenmay causedouble vision.</p><p>Dry Eyes</p><p>Dry eyesyndrome(DES) or simplydry eyesis an eye condition caused by</p><p>decrease in tear production or increasedtear filmevaporation. If we stare at</p><p>our computer screen for long periods without blinking this condition mayoccur.</p><p>Temporary Nearsightedness</p><p>Temporary nearsightednessorshortsightednessormyopiacauses</p><p>nearby objects seen clearly, but distant objects appear blurred.</p></li><li><p>8/3/2019 You Have Computer Vision Syndrome</p><p> 2/6</p><p>Ophthalmologists and optometrists usually correct myopia using corrective</p><p>lenses.</p><p>Photophobia orDecreased Toleranceto Light</p><p>Photophobiaor fear of light, is excessive sensitivity to light. In medical</p><p>terms, it is not fear, but an experience of discomfort or pain to the eyes dueto light exposure. (I suffer from this sometimes)</p><p>Eye Strain</p><p>Eye strainorAsthenopiais aneye conditionthat manifests itself through</p><p>nonspecific symptoms such asfatigue,red eyes,eyestrain,pain in or</p><p>around the eyes,blurred vision,headacheandoccasional double</p><p>vision. When we concentrate on a visually intense task like continuously</p><p>focusing on computer screen or book.</p><p>CRT monitors with a low refresh rate less than 70 Hz can cause similarproblems because of the flickering image. Aging computer screens also</p><p>often go slightly out of focus, and this can also cause eye strain.</p><p>What Causes CVS Symptoms?</p><p>Computer Screen</p><p>Characters on a computer screen do not have sharp edges compared to</p><p>the printed ones. The pixels are brightest at the center and decreases in</p><p>intensity towards the edges. This makes it very difficult for our eyes to</p><p>maintain focus. Trying to focus extensively do not allow the eye muscles tomove frequently, and this leads to eye strain, burning and fatigue.</p><p>Computerusers usually have a fixed posture. Gazing constantly at a</p><p>computer screen from a close distance leads to convergence fatigue.</p><p>Image Clarity</p><p>Lack of image clarity often makes a computer user to stare more intensely</p><p>in an effort to focus.</p><p>Glare</p><p>Glare from reflections and lights on computer screens from overhead lights</p><p>or direct light coming through windows and bouncing off the screens tires</p><p>the eyes.</p><p>Blink</p></li><li><p>8/3/2019 You Have Computer Vision Syndrome</p><p> 3/6</p><p>Infrequentblinking causesthe tear film in our eyes to evaporate. While a</p><p>person blinks 15 times per minute, the blink rate comes down to 5 times in</p><p>a minute when working on a computer because of continuosly staring at the</p><p>screen. Blinking is important for spreading of tears to form an even film on</p><p>the eye surface. Inadequate blinking causes the eyes to become dry andirritated.</p><p>Correct Posture</p><p>What Can Be Done To Reduce Computer VisionSyndrome?</p><p>Anyone who has the symptoms or suspects of CVSshould have a thorough</p><p>eye check with aneye specialist. Apart from this a few precautions could</p><p>reduce the risk ofCVS.Screen Distance</p><p>Ideally the monitor should be at a distance of 16-30 inches from the eyes</p><p>depending on the size of your screen. Also adjust the height of the</p><p>computer table or the chair, so that the middle of the screen is 15-20</p><p>degrees below eye level. Always try to use an ergonomic chair as it helps</p><p>in reducing neck and back pains in users.</p><p>Avoid Air Drafts</p><p>Avoid sitting in front of a pedestal/table fan or an airconditioner facing its airdraft while working on a computer.</p><p>Reducing Glare</p><p>Position your computer screen so that the windows are to the side rather</p><p>than the back or front. Using glare filter screens on monitors are helpful.</p><p>Blink More</p><p>Make a conscious effort to blink more often. Try to blinkevery time you</p><p>make a click with the mouse or every time you hit "ENTER!. Alternately you</p><p>could try the suggested formula 20:20:20. That is, every 20 minutes : for 20</p><p>seconds : blink 20 times.</p><p>Use Eye Lubrication</p><p>Lubricatingeye dropshelp to moisterize your eyes. Eyes become dry and</p><p>irritated by working for long hours on the computer. Lubricating eye drops</p></li><li><p>8/3/2019 You Have Computer Vision Syndrome</p><p> 4/6</p><p>help in reducing eye strain and redness, provides soothing effect to he</p><p>eyes and releaves irritation.</p><p>Take a 5 minute break for every thirty munutes of work on your computer.</p><p>This can reduce eye fatigue and get you refreshed.</p><p>If you experience any of the following do not hesitate to consult your</p><p>ophthalmologist:for you may be a victim ofComputer Vision</p><p>Syndrome!</p><p>Burning eyes, double vision, eye fatigue or tiredness, blurry distance</p><p>vision when looking up from the monitor, dry, tired, or sore eyes,</p><p>when you need to squint to focus on the screen, neck, shoulder, or</p><p>back pain, headaches during or after working at the computer, when</p><p>driving or during night vision is worse after using a computer, whenyou see "halos" around objects on the screen, and when you need to</p><p>interrupt work frequently to rest eye. Three or more of these</p><p>symptoms will be associated withComputer Vision Syndrome.</p><p>An estimated 40 percent to 70 percent of computer users suffer from</p><p>dry, irritated eyes. The good news is that it can be treated</p><p></p></li><li><p>8/3/2019 You Have Computer Vision Syndrome</p><p> 5/6</p><p>4 Your Health: Computer VisionBy Vince Vitrano</p><p>Do you ever notice that after a couple of hours sitting at the computer you don't feel very</p><p>well? It could be a condition called Computer Vision Syndrome.</p><p>Will Bulka spends a big chunk of his work day online.</p><p>"I look at a computer screen anywhere between 8 to 10 hours a day," he says.</p><p>It takes its toll. He says, "You know, I come home from work sometimes with terrible</p><p>headaches."</p><p>Headaches, blurred vision, focusing problems: All of these symptomspresent, practitioners will be refer to as having Computer VisionSyndrome. The American Optometric Association says CVS is not anofficial diagnosis, but is a real problem. It impacts as many as 70% ofthose who work on their computers daily for at least two hours.</p><p>Dr. Jim Sheedy is with the American Optometric Association. "It's just proliferated as</p><p>computers have proliferated in our workplaces and our homes," Dr. Sheedy says.</p><p>It can also happen when you're texting a lot.</p><p>It can affect anyone but certain groups are more prone to problems. "Anyone who</p><p>requires bifocals or progressive lenses to work at a computer, because your typical</p><p>bifocals are designed for looking down about 25 degrees at a viewing distance of about</p><p>16 inches. That's not where the computer is so very often a person needs to take their</p><p>general issue bifocals and go like this and then like this and they end up with neck and</p><p>back aches," Dr. Sheedy explains.</p><p>It could also cause dry eyes.</p><p>"Their blink rate goes way down. They only blink about one third as frequently as, say,</p><p>when you're engaged in conversation and the primary reason is to re-wet the eyes. So if</p><p>your blink rate goes down, your eyes are open longer and you tend to get dry eyes," Dr.</p><p>Sheedy says.</p></li><li><p>8/3/2019 You Have Computer Vision Syndrome</p><p> 6/6</p><p>Postmenopausal women are also at risk because they may have dry eyes to begin with,</p><p>and anyone at any age who plays computer games for hours is also vulnerable.</p><p>What can you do? Fix your work environment for one.</p><p>"You should not have bright peripheral lights in your field of view and get your computer</p><p>display straight in front of you. You should not have to look off to the side to see your</p><p>computer display. Also, the display should be at the same horizontal level as your eyes</p><p>and this way you're looking slightly downward at it," Dr. Sheedy suggests.</p><p>And use the 20-20-20 rule, taking breaks every 20 minutes for 20 seconds, looking off</p><p>about 20 feet at something three-dimensional instead of flat.</p><p>That helps Will Bulka. "I'll go walk outside, try to get some sunshine just get my eyes</p><p>where they don't have to focus so much on a, on a gleaming screen," Will says.</p><p>Dr. Sheedy with the AOA says the good news is that there's no real evidence of long</p><p>term damage from CVS, and that if you're suffering there is treatment.</p><p></p></li></ul>