There is an increase in the use of multiple screens in general offices, particularly where information from several sources is required to complete the task.
An example is a stockbroker who needs to obtain a lot of information simultaneously to make split second decisions about stock prices, and when to buy or sell.
This task requires all available information to be clearly visible
The use of multiple screens may improve performance particularly if 20 % or more of the task requires consolidating of information from more than one source.
However, using multiple screens requires the user to switch back and forth between screens, so there is a concern that the use of multiple screens increases head and neck rotation and can potentially cause discomfort for employees.
Employers must ensure a Workstation Risk Assessment is conducted to assess any risks to the employee using multiple computer screens.
Employees using multiple computer screens should request a workstation assessment to be undertaken by an ergonomic specialist to determine the following:
- Size of Screens used are suitable for the tasks being undertaken
- Size of Characters and Amount of Information on each screen is suitable for adaption to suit the individual user and task being undertaken
- Layout of the Screens on Desk Top gives optimum viewing distance to avoid muscular skeletal and eye strain.
- Positioning of The Screens – Side by Side or In Front and to Either Side to suit the task
- Arm Monitors are used appropriately to allow for adjusting and tilting of the screens for optimum viewing angle