What is Computer Vision Syndrome?

Computer Vision Syndrome (CVS) refers to a group of eye and vision-related problems caused by prolonged use of digital screens, such as:

• Computers

• Tablets

• Smartphones

• Televisions

When you use a screen for long periods, your eyes have to work harder, which can lead to discomfort.

 

Common Symptoms of CVS

If you spend 2 or more hours a day in front of a screen, you may experience:

• Eye strain or discomfort

• Dry eyes

• Blurred or double vision

• Headaches

• Neck, shoulder, or back pain

• Difficulty focusing

• Increased sensitivity to light

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What Causes CVS?

CVS is caused by overuse of the eyes without enough rest. Contributing factors include:

• Poor lighting

• Glare on the screen

• Poor posture

• Incorrect viewing distance or angle

• Uncorrected vision problems

• Reduced blinking while using screens (causing dry eyes)

 

Who is at Risk?

Anyone who uses digital devices for long periods, especially:

• Students

• Office workers

• Gamers

• People working from home

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How to Prevent and Manage CVS

🕒 Follow the 20-20-20 Rule

Every 20 minutes, look at something 20 feet away for 20 seconds. This gives your eyes a rest.

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🪑 Set Up an Ergonomic Workspace

• Keep your screen 20–28 inches away from your eyes

• Position the screen so that your eyes look slightly downward

• Use a comfortable chair with back support

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💡 Improve Lighting and Reduce Glare

• Use anti-glare screens

• Adjust screen brightness and contrast

• Avoid bright overhead lighting or direct sunlight

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👁️ Use Artificial Tears

If your eyes feel dry, use lubricating eye drops (ask your doctor for a recommendation).

👓 Wear Proper Eyeglasses

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• If you wear glasses, ask about computer glasses with blue light filters or anti-reflective coating.

💧 Remember to Blink

We blink less when looking at screens. Conscious blinking helps prevent dry eyes.

💤 Take Regular Breaks

Take short breaks every hour to stand, stretch, and relax your eyes and body.

 

When to See an Eye Doctor

See an ophthalmologist if:

• Symptoms persist despite taking breaks

• You have blurry vision, frequent headaches, or eye discomfort

• You need a proper eye exam or prescription adjustment