UK university scientists have come up with a method to help children who cannot use a mouse or keyboard to play computer games.

The project at De Montfort University aims to allow severely disabled youngsters to play computer games, the BBC reported.
Eye control "adds a whole new level of intelligence to games", said research leader Stephen Vickers.
The use of eye tracking as a way of interacting with devices has been explored for a number of years, he noted, but his project is developing a more accessible, low-cost system, which will bring games into the reach of disabled children who cannot operate a mouse or keyboard.
They will be able to "push" buttons and direct a character by looking at different points on the screen. In a spaceship game, he said, players can fire a gun by staring at a button.
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If the eyes focus on an on-screen button, this can be like using a mouse and cursor to "click" on a button.
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As well as letting children play games, it is also a way of helping children with very limited mobility to learn how to move around virtual environments, including those showing the layout of real buildings.
Source-ANI