When it comes to IT and working with computers, health and safety problems tend to arise in these areas:
Yes. Although using computers is generally a low-risk activity, it's important to assess the risks accurately.
You should consider them as part of your overall health and safety and risk assessment process. It's no different to assessing risks in any other area.
You don't need to have a separate policy to deal solely with IT health and safety issues, but it is important your company's health and safety policy covers safe use of IT equipment.
Doing everything you can to keep staff safe is in the interests of both your business and your employees.
It's a really good idea to make sure everyone who works regularly with a computer understands how to adjust their chair, screen, keyboard, mouse and other equipment. This will ensure they don't place unnecessary strain on any part of their body while at work.
Provide training in basic good practice as part of your induction process. You can also provide occasional refresher training and use company bulletins, meetings or emails to remind staff how to use IT safely.
The Health and Safety Executive publishes an excellent document (PDF) that explains how to use computers safely. You could also consider bringing in a consultant to evaluate your employees as they work.
It's worth thinking about how the equipment will be used, and whether your employees will find it comfortable.
Relatively inexpensive items like keyboards and mice can make a big difference to comfort, so you may wish to allow employees to choose models they prefer.
Computer screens are important too. In general, bigger is better. Try and invest in models that are height-adjustable and can be tilted to a comfortable angle.
Finally, make sure furniture can be adjusted so your staff are comfortable. Provide foot rests, lumbar support and other items to staff on an individual basis.