Guidance on preventing 'digital eye strain' has been published by US body The Vision Council in line with increased use of computer devices.
It follows a study by the organisation in the US showing that the majority of adults experienced vision problems from devices including televisions, computers, smartphones and tablets.
The study, of 10,000 adults in the country, found that 32 per cent of people experienced eye strain after prolonged use of devices, while 20 per cent reported dry eyes and 20 per cent blurred vision. Thirty-four per cent complained of neck and shoulder pain and 18 per cent of headaches.
The Vision Council has advised consumers to take a break every 20 minutes, for 20 seconds, and look at something 20 feet away. Lighting and remembering to blink were also deemed important, while people were urged to invest in computer eyewear.
Ed Greene, CEO of The Vision Council, said: 'Digital devices are an important part of our everyday lives - from business and recreation to socialisation and even education - but this behaviour poses a potential risk to our eyes.
'The report brings attention to the issue of digital eye strain and outlines strategies and products to prevent the discomfort that many experience while using popular devices.'
The Vision Council added that individuals may also experience eye fatigue and strain from blue light waves emitted from electronic screens. It said prolonged use, intense overhead lighting, poor posture, chair positioning, and incorrect monitor arrangement all led to problems.
? The guide Keeping Your Eyes Safe in a Digital Age is available as a download from www.thevisioncouncil.org
