A computer user must continually focus and refocus to keep the images sharp. This process results in repetitive stress of the eye muscles. Additionally, after prolonged computer use, the frequency of blinking is decreased and eyes dry out and become sore. As a result, the ability to focus diminishes and vision may blur resulting in headaches. Because of the elevated gaze, computer users frequently dip their heads which results in poor posture and neck pain.
The good news is no clinical evidence indicates that computers cause long-term vision problems. However, CVS is responsible for damaging effects on productivity, general well being, and day-to-day morale.
Bausch & Lomb reports that nearly 60 million people suffer from eye or vision problems due to computer work. One million new cases are reported each year. Millions of computer users have symptoms of what the American Optometric Association calls Computer Vision Syndrome (CVS), eye and vision problems related to computer use. These symptoms include:
- Tired eyes
- Eyestrain
- Sore eyes
- Periodic blurred near vision
- Occasional blurred distance vision
- Headaches
- Dry eyes
- Slowness in changing the focus of your eyes
- Red eyes
- Burning eyes
- Contact lens discomfort
- Changes in color perception
- Glare sensitivity
- Excessive tearing
If you use your computer often and have experienced several of these symptoms, you probably are a victim of Computer Vision Syndrome. Although Computer Vision Syndrome is a widespread problem, it can be avoided. Protecting your eyes when using the computer can be as easy as changing the position and/or location of the computer monitor. So even if you don't feel that you have CVS, please see my tips for setting up an eye-friendly environment.
According to a recent survey, people who wear glasses are more prone to Computer Vision Syndrome (CVS). The SOLA Web site states that almost 71% of those reporting CVS symptoms wore glasses. If you wear bifocals, clip on lenses are available that are easy on the eye and easy on the pocketbook. See my review of melanin glasses, a patented high tech solution for tired, strained eyes.
