Computer Vision Syndrome

Understanding Computer Vision Syndrome (CVS)

Decades ago, Computer Vision Syndrome (CVS) wasn't known. Now, with computer use rising, 50-90% of users experience CVS.

CVS is not a single specific problem but a collection of related issues. With the increased use of computers, tablets, and smartphones, even children are becoming more susceptible to CVS. This syndrome is similar to other repetitive motion conditions like carpal tunnel syndrome. Problems can start due to repetitive eye movements when reading text on a screen. Digital screens add flicker, contrast, glare, and light, which further strain our eyes.

Issues may be exacerbated if you need corrective lenses but don’t wear them, putting additional strain on your eyes. Aging can also accelerate these issues. Around age 40, the lenses of the eyes begin to harden due to a condition called presbyopia, affecting the ability to see close objects.

Currently, there is no evidence that CVS causes long-term vision impairment or blindness. However, continuing to use screens can be an annoyance and reduce your ability to see properly. Some warning signs of CVS include:

• Blurred vision
• Double vision
• Red or dry eyes
• Headaches
• Neck pain
• Back pain
• Eye irritation

If you don’t treat CVS symptoms properly, you may notice a decrease in your overall quality of life or job performance.

Fortunately, CVS can usually be treated with a few small changes to your viewing habits or screen settings.

• Reduce Glare: Reducing glare from your computer screen is essential, as it adds strain to your eyes. You can reduce glare by changing the angle of your screen, using a dimmer switch for overhead lighting, adjusting blinds to control natural light, or purchasing a glare filter for your screen.

• Move Your Desk: Position your monitor just below eye level and 20-28 inches in front of your eyes. You shouldn't need to change your head position or strain your neck to read the screen. Use a stand to keep printed materials at the same height as your monitor.

• Change Your Settings: Adjusting your screen’s brightness, contrast, and font size can significantly reduce eye strain.

• Take Breaks: Use the 20/20/20 rule: every 20 minutes, look at an object 20 feet away for 20 seconds. If your eyes feel strained, take a short break away from the screen.

• Update Your Prescription: Ensure your prescription is accurate to reduce eye strain. Consider anti-glare coatings on your glasses or polarized lenses in your sunglasses to protect your eyes.

For more information on managing CVS, contact our knowledgeable eye care team.