What is the 20–20–20 rule?

Every 20 minutes, take a 20-second break and look at something about 6 metres away. It is a practical reminder to rest from close work, rather than a treatment for eye disease. A quiet reminder can help if you tend to forget breaks. [1]

How should I position my screen?

Place it roughly an arm’s length away, with the top at or slightly below eye level. Increase the text size if you lean forward to read. Position the window to one side to reduce screen reflections. [1]

Do I need special blue-light glasses?

There is no good basis for promising that these glasses will solve digital eye strain. The American Academy of Ophthalmology emphasises device-use habits, breaks and blinking. If you need vision correction, lens selection starts with an appropriate assessment. [2]

Taking a screen break to look at greenery outside
Taking a screen break to look at greenery outside.

What if my eyes feel dry?

We may blink less when looking at a screen for a long time. Take breaks and remember to blink; if discomfort continues, seek advice from an eye care professional. Do not assume every burning sensation is caused only by computer use. [2]

What should I tell the optician?

Explain how long you work at a computer, your reading distance and when you notice difficulty. Bring your current glasses. At Optika Rodenstock you can arrange vision measurement and discuss your needs; medical symptoms require an appropriate medical examination.

Related service: Vision measurement.

Sources and further reading

  1. CDC / NIOSH: the workstation and eye strain
  2. American Academy of Ophthalmology: digital devices and the eyes

This is general information and does not replace an individual examination. The photographs were created as illustrations and do not show patients or the shop’s premises.

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