Saturday, May 16, 2015

Computers And Eyes Problems


Computers and eyes problems

Computers And Eyes Problems - Using a computer at work or home is very typical these days. According to the bureau of Labor Statistics, over 50% of all workers in the United States uses a computer at their job. And if they don’t use one at work, you can guarantee they use one at home. When most people think of the health issues related to the overuse of a computer they think of carpal tunnel, neck, shoulder and even some minor back issues. Many would not think that using a computer for extended periods of time could cause CVS, or Computer Vision Syndrome.




Computers And Eyes Problems - Finding and improving other problems that may be affecting the eyes, including drafty, dry or dusty air. Try to keep air vents or drafts from blowing into the face and drying out the eyes. Low humidity or fumes in a room can also dry eyes out faster than usual. Dust, too, can irritate eyes as well as accumulate on the computer monitor, which will decrease the sharpness of the screen and may cause eyestrain.


Use adequate lighting Eye strain is often caused by excessive sunlight coming in through the window or by bright room lighting.Use curtains or blinds to reduce the brightness of the sun, reduce the lighting in your room and avoid sitting under big overhead fluorescent lights.If possible, use floor lamps instead.


Initially, computers were used almost exclusively by adults. Today, millions of children use computers on a daily basis at school and at home, both for education and recreation. Although the visual impact of computer use has been studied in adults, only a few studies have investigated the same issue in children.Children can experience many of the same symptoms related to computer use as by adults. Extensive viewing of the computer screen can lead to eye discomfort, fatigue, blurred vision and headaches, dry eyes and other symptoms of eyestrain. These symptoms may be caused by poor lighting, glare, an improper work station set-up, vision problems of which the person was not previously aware, or a combination of these factors. In most cases, symptoms occur because the visual demands of the task exceed.




The limited degree of self-awareness of children Most of them keep performing an enjoyable task (e.g. playing video games) with great concentration, for many hours, until exhaustion, with few, if any, breaks. Prolonged activity without a significant break can cause accommodative problems and eye irritation. Accommodative problems may occur as a result of the eyes' focusing system "locking in" to a particular target distance. In some cases, this may cause accommodation spasm1.Eye irritation may occur because of poor tear distribution over the eye due to reduced blinking. Blinking is often inhibited by concentration and staring at a computer or video screen. Compounding this, computers usually are located higher in the field of view than traditional paperwork. This results in the upper eyelids being retracted to a greater extent. Therefore, the eye tends to experience more than the normal amount of tear evaporation resulting in dryness and irritation1–3.



Upgrade your display Changing from an old-style cathode ray tube (or CRT) monitor to a modern LCD screen can help avoid eye strain.CRTs can flicker, which contributes significantly to eye strain, while LCD screens are easier on the eye and usually have an anti-reflective surface.When choosing a new LCD screen, pick one with the highest resolution possible.



Glare reflected from light-coloured painted walls and shiny surfaces, as well as reflections on your computer screen, can cause eye strain.An anti-glare screen attached to your monitor can help and is a less drastic measure than painting the walls in a darker.Reducing the external light by covering windows or using a computer hood over the monitor might help.If you’re a glasses wearer, using lenses with an anti-reflective coating reduces glare. At Specsavers, lenses are available with Ultraclear - an anti-reflection and a scratch resistant coating in one.



Working on a computer is more challenging to your eyes than reading a book or piece of paper, because a computer screen also adds the elements of screen contrast, flicker, and glare. Computer eye problems are more likely to occur if you already have an eye problem -- such as nearsightedness or astigmatism -- or if you need glasses but don't wear them or wear the wrong prescription for computer use.

If you spend too much time in font of a computer one of your eyes might twitch when times goes on, watch this video on How To Solve The Biggest Problems With Your Eyes Twitching?


Bibliography

Computer Eye Strain Symptoms & Solutions| Specsavers Opticians ... 1970, Viewed 10 May 2015, <http://www.specsavers.co.uk/eye-health/computer-eye-strain-symptoms-and-solutions>.
Computer Vision Syndrome 1970, Viewed 10 May 2015, <http://www.webmd.com/eye-health/computer-vision-syndrome>.
Eye Health Issues Related to Computer Use 1970, Viewed 10 May 2015, <http://vision-care-review.toptenreviews.com/eye-health-issues-related-to-computer-use.html>.
Impact of computer use on children's vision 1970, Viewed 10 May 2015, <http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2776336/>.
Penn Medicine | University of Pennsylvania Health System, Philadelphia, PA 1970, Computer Vision Syndrome | Scheie Eye Institute , Viewed 10 May 2015, <http://www.pennmedicine.org/ophthalmology/patient-care/eye-diseases/computer-vision-syndrome.html>.

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