Findings from the American Optometric Association indicate that more than seventy percent of employed persons that sit each day from a computer (over 140 million people) suffer from computer vision syndrome or eye fatigue. Excessive computer use can cause eye stress and effect eyesight in kids and adults. Anyone that works over two hours on a daily basis on the computer is at risk of suffering from symptoms of computer related eye fatigue.
Signs of Computer Eye Strain
Symptoms of CVS include vision problems such as dry eyes, blurriness, lack of focus or double vision and pain such as headaches, back pain and tired eyes. If you notice a number of these symptoms you may have Computer Vision Syndrome.
Causes of Computer Vision Syndrome
Computer eye strain and CVS are caused by the necessity for our eyes and brain to adapt to processing letters on a computer screen differently than they do for printed letters. While our eyes are used to keeping focus on printed content that has solid black letters with distinct edges, they are not as adept with texts on a screen that lack the same level of contrast and sharpness.
Letters on a screen are created by combinations of tiny dots of light (pixels), which are most luminous in the middle and dimmer toward the edges. This makes it more difficult for our eyes to keep focus on these letters. Rather, our eyes feel more comfortable at the ''resting point of accommodation'' or RPA.
Through involuntary movements, our eyes revert to the RPA and then have to make a great effort to regain focus on the images. The continual strain on the eye muscles to focus creates the symptoms listed above that commonly appear with extended computer use. Computer vision syndrome isn't a matter of concern just for computer users. It's important to note that other electronic gadgets such as smart phones or tablets can result in the same symptoms that can be in some cases more severe. Since mobile screens are often small the eyes have to put even more exertion into reading the images.
Computer Vision Syndrome Treatment
Computer vision syndrome can be extremely uncomfortable so if you are experiencing these symptoms it is worthwhile to consult an eye doctor as soon as possible.
At an exam, the eye doctor will perform tests to detect any vision problems that could worsen CVS. Depending on the results of the exam, your practicioner may prescribe ophthalmic computer glasses to help you work more comfortably at your screen. Additionally, you should strongly consider an anti-reflective coating for computer eyeglasses. An anti-reflective coating lessens reflections on the front and back surfaces of the lenses that cause glare and affect your ability to focus on images on your computer.
Alternative Treatments for CVS
Ergonomics, or setting up your workstation to limit the need for your eyes and your body to strain to accommodate, can help reduce some physical symptoms of computer vision syndrome. Proper lighting and frequent breaks will cause some relief. Nevertheless, very often computer eyeglasses are also required to fully eliminate CVS.
If you would like to consult with a professional eye doctor to discuss the risks and symptoms for CVS, contact the Eye Care Memphis optometry office.