What is Computer Vision Syndrome (CVS)?

Computer vision syndrome (CVS) is strain on the eyes that happens when you use a computer or digital device for prolonged periods of time.

Anyone who has spent a few hours on the computer has probably felt some of the effects of prolonged use of the computer or other digital technology.

What are the common symptoms of CVS?

The most common symptoms are
• Eyestrain
• Headaches
• Blurred vision
• Difficulty in changing focus between far and near
• Dryness of eyes
• Tired eyes

Who can be affected by CVS?

Computer Vision Syndrome affects 75% of the people who work on computers, mostly those who work more than 3 to 4 hours with computers.

This includes all professions that use computers IT, Accounting, Banking and Students.

Treatment for Computer Vision Syndrome

Viewing the Computer

Some important factors in preventing or reducing the symptoms of CVS have to do with the computer and how it is used. This includes lighting conditions, chair comfort, location of reference materials, position of the monitor, and the use of rest breaks.

  • Location of computer screen– Most people find it more comfortable to view a computer when the eyes are looking downward. The computer screen should be 15 to 20 degrees below eye level.
  • Lighting– Position the computer screen to avoid glare, particularly from overhead lighting or windows. Use blinds or drapes on windows and replace the light bulbs in desk lamps with bulbs of lower wattage.
  • Seating position– Chairs should be comfortably padded and conform to the body. Chair height should be adjusted so your feet rest flat on the floor. If your chair has arms, they should be adjusted to provide arm support while you are typing. Your wrists shouldn’t rest on the keyboard when typing.
  • Rest breaks– To prevent eyestrain, try to rest your eyes when using the computer for long periods. Rest your eyes for 15 minutes after two hours of continuous computer use. Also, for every 20 minutes of computer viewing, look into the distance for 20 seconds to allow your eyes a chance to refocus.

Give your eyes a break.

Follow the 20-20-20 rule. Look away from the screen every 20 minutes and look at something around 20 feet away for about 20 seconds. Blink often to keep your eyes moist.

Why 20 seconds?

It takes about 20 seconds for your eyes to completely relax.

While you’re resting your eyes, it’s also a good idea to get up and grab a drink of water to keep yourself hydrated. If your body is hydrated, your eyes will be as well.