Computer Vision Syndrome
Most common computer related Eye complications: Computer Vision Syndrome
Computer eye strain is one of the chief complains to people who use the computer on a daily basis. This affects more than 70 percent of the approximately 143 million Americans who work on a computer on a daily basis, according to the American Optometric Association (AOA).
Eye strain and other symptoms of computer vision syndrome (CVS) don’t occur only in adults only. Because Millions of children work at a computer every day both at home and in school and are subject to prolonged computer that cause stress in a child’s eyes and may affect normal vision development.
What are the symptoms of computer vision syndrome?
If you or your child spend more than two hours per day in front of a computer screen, it’s likely you will experience some degree of computer vision syndrome. Symptoms of CVS include:
- Headaches
- Loss of focus
- Burning eyes
- Tired eyes
- Double vision
- Blurred vision
- Neck and shoulder pain
What causes computer vision syndrome?
Both Computer eye strain and computer vision syndrome, are a s a result of the eyes and brain reacting differently to characters on a computer screen, differently from the way that they do to printed characters. Since the printed materials have dense black characters and also well-defined edges, they present little problems to the eyes and are easier to focus on. In contrast, characters on a computer screen have different degrees of contrast and definition.
The reason for this is that Words on a computer screen are created by combination’s of tiny points of light (pixels), which are brightest at the center and diminish in intensity toward their edges. This therefore gives s the eyes difficulty in maintain focus on these images and instead the eyes Instead drift to a reduced level of focusing called the “resting point of accommodation” or RPA.
By moving to the RPA , our eyes strain to regain focus on the screen. This continuous flexing of the eyes’ focusing muscles creates the fatigue and eye strain that commonly occur during and after computer use.