Vision Problems From Computers

Computers provide a wide variety of benefits, ranging from greater efficiency and fast communication to entertainment. Yet, as computers take on a central role in more and more areas of life, it forces people to spend increasing amounts of time looking at computer screens. These prolonged periods of looking at computers can cause a variety of visions problems that fall under the domain of eyestrain. According to the Mayo Clinic, the particular form of eyestrain caused by computer use is called Computer Vision Syndrome.

Symptoms

• The symptoms of Computer Vision Syndrome fall into two categories: direct and indirect symptoms. Dr. Marc Grossman, optometrist, states that the direct symptoms include blurred vision, headaches and alterations in color perception. He also notes that these symptoms manifest in over 50 percent of computer users. The indirect symptoms of the syndrome include pain in the neck, shoulders and back. These symptoms can also indicate that another underlying condition exists.

Causes

• The causes for Computer Vision Syndrome vary, but both biological and environmental factors can contribute to its development. Extended time in front of the computer, generally over two hours at a time, appears as the main factor for visions problems stemming from computer use. The American Optometric Association reports that this time places an usual visual demand on the eyes. Such a demand is exacerbated when combined with physical vision problems like near-sightedness and environmental factors like glare.

Diagnosis

• Diagnosis of the syndrome occurs primarily through an eye exam and the presence of symptoms. The examination includes several tests that measure visual acuity, the appropriate level of correction needed (where necessary) and the capacity of the eye to move and focus properly, according to the American Optometric Association. The test results, taken together with the patient history and through the exclusion of other possible underlying conditions, allow for a diagnosis of the syndrome.

Treatment

• The treatment of vision problems associated with computer use hinge on the causal factor. In some instances, corrective lenses to treat near- or far-sightedness can correct the problem. The Mayo Clinic also reports that prescription lenses made specifically for computer use can provide relief. ) Adjustments to the ergonomics of the work environment can alleviate symptoms as well. The American Optometric Association recommends positioning the screen so the user must look slightly down to view the screen and that a minimum of glare appears on the screen from lights and windows. Taking periodic breaks from viewing the screen can also prove beneficial.