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How to avoid digital eye strain

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Computer Vision Syndrome (CVS) is one of the most common work-related stress injuries. Staring at a screen all day can put a serious strain on your eyes. In fact, it’s estimated that more than half of those who work in front of a computer experience vision problems.

Colourful laptop screen in front of TV screen

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Computer Vision Syndrome causes tired eyes, eye dryness, watery eyes, headaches, blurry vision and increased sensitivity to light. While CVS doesn’t typically lead to serious long-term problems, it can cause discomfort and affect your day-to-day life.

For many, such as those working in an office, it can be tricky to reduce amount of time spent in front of a screen. But you can take some steps to protect your eyes.

Follow the 20-20-20 rule

The 20-20-20 rule is a method that gives your eyes a regular break from looking at the computer screen, helping to reduce the risk of Computer Vision Syndrome. It involves taking a break for 20 seconds every 20 minutes, looking at something 20 feet away.

20-20-20 rule infographic

To help you to stick to the 20-20-20 rule, there are several apps and tools you can use. Workrave is a free program that regularly alerts you to take micro-pauses and rest breaks, helping to prevent CVS and Repetitive Strain Injury, and F.lux adjusts the glow of your monitor based on the time of day.

Move your monitor

The position of your computer monitor is important for both your posture and your eyes. Having the monitor too low, too high, too close or too far away can give your eyes a lot more work than necessary.

Your monitor should sit about an arm’s length from your face. It should also be placed directly in front of you, rather than slightly to the side of your sitting position.

Most people find it more comfortable to look slightly down at a computer monitor, rather than up or directly ahead. Position your monitor at around 10-20cm below your eyes to keep your neck at an optimal relaxed state.

Reduce glare

Having glare on your computer screen is not only irritating, it can also wreak havoc on your vision. But there are a few easy ways to reduce glare:

  • Turn your work area away from a light source.
  • Many monitors are designed to be anti-glare, but it’s also possible to attach an anti-glare screen to your existing monitor.
  • Glasses wearers can use lenses with an anti-reflective coating, which helps to reduce glare

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Adjust your screen settings to help your eyes

Leaving your computer monitor on its factory settings isn’t the best idea when it comes to reducing the risk of CVS. Additionally, if you’re still using an old cathode ray tube monitor (your typical old computer screen), it’s time to upgrade to a modern LCD screen, as they’re much better for your eyes.

Your monitor should also have adjustable display settings. Adjusting the colour temperature to reduce blue colours can help to reduce vision problems. Short wavelength light (linked with bluish colours) is more closely connected to eye strain than long wavelength light (linked with reddish colours). Too much blue light can also reduce contrast, meaning your eyes must work harder to look at the screen.

You should try to match your screen brightness to your surroundings – too bright or dark can put an unnecessary strain on your eyes. Try to avoid sitting in front of a window or other bright sources of light, as your eyes may be strained from having to constantly adapt between the two different light intensities.

We hope we’ve helped you to understand what causes digital eye strain and how to prevent it. If you’re suffering with the symptoms of CVS, get in touch with your local optician.