What is CVS (Computer Vision Syndrome)?
Some experts believe that anyone who stares at a computer screen for more than two hours a day has likely experienced Computer Vision Syndrome (CVS) to some degree. Blurred vision, itchy dry eyes, headaches and neck strain are just a few of the symptoms, according to the American Optometric Association. The problem lies in the difference between images on a computer screen and real-world images. The human eye is designed to focus on real-world objects, which by nature have clearly defined boundaries. Even print on a page, for example, displays sharp borders and high contrast that extends to the letters’ edges. Conversely, a computer screen creates letters by grouping dots or colored pixels closely together. Zooming in on a computerized letter will reveal that rounded or curved edges are not smooth and solid, but irregular and indistinct. The eyes have a harder time maintaining focus on a computer display for this reason, and involuntarily drift to what is termed “the resting point of a
