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Using computers: any risks?

by HoldtheFrontPage Staff Published 25 Jun 2007

We all use computers and most of us use them on a daily basis, during our leisure time and particularly to do our work. There are very few people who do not have some involvement with computers at work.

Are there any risks to your health from using computers? Where can you obtain further information on how to use them safely?

Hazards

The hazards in using computers can be divided into two groups:

  • Physical hazards to individuals from actually using computers – upper limb disorders, neck pains, etc.
  • Electromagnetic physical hazards from electricity, and from electromagnetic fields. The obvious hazard is electric shocks from the source of power.

    Physical hazards causing symptoms

    You will most likely communicate with a computer via a keyboard and/or a computer mouse. Communication is most easy when the computer user is comfortable, and able to see the screen easily. There are many factors which affect the ease of use of a computer. One major aspect is the workstation where the computer is used. If the computer workstation is badly organised or badly set out, the users can develop a number of symptoms which may appear to be related to computer use. Aching hands, arms, & necks, temporary eyestrain, headaches and fatigue are the commonest symptoms reported.

    What can you do to minimise the impact of computer use on your health?

    WORKSTATION

  • Ensure that the workstation where you use your computer is set up correctly. You, the keyboard and the display screen should be in a straight line. (If you sit at an angle you are likely to develop discomfort in your neck)
  • Ensure the screen is at a sensible level for you to see easily. You should be looking down when sitting in your chair.
  • Ensure the desk top is at a sensible height. Ensure there is adequate space for your computer and papers on the desk.
  • Ensure your chair is adjustable and adjusted for your individual size. Do you need a footrest?
  • Have a wrist rest for the keyboard and/or the mouse mat.
  • Have a document holder if you are copy typing. This will minimise the need to turn your head and neck.

    TASK

  • Have regular breaks when doing prolonged work. A sensible guide is a five-minute break from computer work every hour.
  • Is the software suitable for the task? Have you had training on the use of the software?

    WORK ENVIRONMENT

  • Ensure there is an adequate level of lighting. Can you prevent glare on the screen from windows or lights?
  • Is the room temperature comfortable? Are there noticeable draughts?
  • Are the computer cables tidy? Are there any trip hazards?

    PERSON

  • Do you have particular difficulties using computers? Ensure your manager is aware of the issues.
  • If you do suffer symptoms, notify your manager and seek help from your family doctor.

    Legislation

    The Health and Safety (Display Screen Equipment) Regulations 1992 set out the approach that employers have to take with staff who use computers and display screen equipment as a part of their jobs. The employer must arrange an assessment which covers many of the points mentioned above. If the employer decides that an individual is a “user”, the “user” must be offered an eyesight test. If glasses are required to use display screen equipment (and only display screen quipment) the employer must provide corrective lenses. (Please see regulations for more details.)

    Electromagnetic radiation and computer use

    The biggest risk to life from computers is electricity. Electric shock from mains voltage is often fatal.

    Ensure that cables are inserted correctly and are checked regularly.

    Computers and associated equipment do produce very small electromagnetic fields. There is no evidence that there is any hazard from these fields. There is no risk to unborn children in computer workers who are pregnant.

    Work with display screen equipment and computers:

  • does not damage eyesight
  • does not affect pregnant women or their unborn children
  • does not cause cancer

    • Further informationThere are many sources of further details on computer work. The Health & Safety Executive produces informative guidance documents and has a website at www.open.gov.uk/hse/hsehome.htm

    Available from HSE Books

  • Working with VDUs (Ref.INDG36 (rev1)) Single copies free
  • Display Screen Equipment Work; Guidance on Regulations’ (Ref. L26) £5.75
  • VDUs an Easy Guide to the Regulations (Ref.HS(G)90) ISBN 0 7176 0735 6 £5.00
  • Evaluation of Display Screen Equipment Regulations 1992′ Contract Research Paper. ISBN 07176 1334 8 £37.50

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