What is computer vision syndrome? The American Optometric Association (AOA) has defined computer vision syndrome as "eye and vision-related problems related to near work experienced during computer use". The National Institute for Occupational Safety and Health (NIOSH) defines it as "eye strain associated with prolonged computer use."

By some estimates this condition effects over 125 million computer users . The usual eye fatigue symptoms are tired, burning, watery, red, sore or itchy eyes, blurred or double vision, back, neck or shoulder pain as well as eye strain headaches. Any of these symptoms could indicate the possibility that you are getting this condition to some degree. The AOA estimates that 90% of all computer users will experience CVS. Nearly everyone that uses a computer for as little as 2 hours a day will notice some of these symptoms sooner or later.

The primary cause results from staring at the computer screen too long and not taking enough breaks. All muscles need a break every so often so they can rest, relax and recover, or they will tire quickly. This can become uncomfortable and sometimes even painful if the muscles tense up and spasm. Only a few seconds rest will allow the muscles to relax and give relief. Eye muscles are no different so when you focus on the screen too long the eye muscles can also tire and tense up.

Proper computer glasses could be the answer. They work by doing the focusing for you allowing the eye muscles to stay relaxed the entire time you are on the computer. Frequent breaks are no longer required because the eyes stay at rest and can now focus on the computer much longer without causing eye fatigue and eye strain. This then solves the problem of computer vision syndrome.