Rendering a visual distraction for a user looking at a display too long

A system for determining whether a user has been looking at a display longer than a predefined period of time, said system comprising:

• at least one input interface;
• at least one transmitter;
• and
• at least one processor configured to:
• determine, via said at least one input interface, whether said user has been looking at said display longer than said predefined period of time,
• obtain location information indicative of a location of a device which comprises said display and locations of a plurality of further devices,
• determine a first location of said device which comprises said display based on said location information,
• determine second locations of said plurality of further devices based on said location information,
• select a further device from said plurality of further devices based on said first location and said second locations, wherein said selected further device is a lighting device, comprises a further display, is a projection device, or comprises daylight blocking means, and
• control, via said at least one transmitter, said selected further device to render a visual distraction if said user is determined to have been looking at said display longer than said predefined period of time.