Computer Vision Syndrome, also known as Digital Eye Strain, describes a group of eye and vision symptoms that can occur after prolonged use of computers, tablets, phones and other digital devices.

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Extended screen use places sustained demands on our focusing and eye coordination systems and can also reduce how often we blink, contributing to dryness and visual discomfort.

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Common Symptoms of Digital Eye Strain

 

You may experience:

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• blurred or fluctuating vision;

• headaches, particularly around the forehead or eyes;

• tired, sore or aching eyes;

• dry, irritated or watery eyes;

• difficulty maintaining clear vision after prolonged screen use;

• neck and shoulder discomfort;

• difficulty changing focus from the screen to something further away.

 

Symptoms are often more noticeable after long periods of uninterrupted computer or device use.

 

What Causes Computer Vision Syndrome?

 

Digital Eye Strain is often caused by a combination of factors, including:

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• prolonged periods of close work;

• reduced blinking while using screens;

• glare or reflections from digital devices;

• poor lighting;

• an unsuitable screen distance or height;

• uncorrected or outdated glasses prescriptions;

• underlying focusing or binocular vision difficulties;

• poor workstation ergonomics.

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Can Screens Affect Children's Vision?

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Children are increasingly spending longer periods using digital devices for learning and recreation.

 

Research has found an association between increased screen time and myopia (short-sightedness), although screen use is only one of several factors involved. Prolonged near work and spending less time outdoors may also contribute to the development and progression of myopia.

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Regular breaks from close work and spending time outdoors are particularly important for children.

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How Can I Reduce Digital Eye Strain?

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Simple changes can make screen use more comfortable:

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• take regular breaks from close work;

• look into the distance periodically to relax the focusing system;

• position the screen at a comfortable working distance;

• reduce glare and adjust screen brightness to suit the room;

• maintain good lighting and posture;

• remember to blink regularly;

• keep your glasses prescription up to date.

 

A useful guide is the 20-20-20 rule: every 20 minutes, look at something approximately 20 feet (6 metres) away for at least 20 seconds.

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When Should I Have My Vision Assessed?

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Occasional tired eyes after prolonged screen use can be common. However, persistent headaches, blurred vision, double vision or significant eye strain may indicate an underlying focusing or binocular vision problem.

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An Orthoptic Assessment can assess how effectively your eyes focus, move and work together and determine whether a functional vision difficulty is contributing to your symptoms.