A scientist has created a budget device that can control a computer by tracking eye movement after stumbling on a £9.95 web camera being sold with a games console – a huge saving from the £20,000 that a similar apparatus used for medical research would have cost at the time.

German neuroscientist Dr Aldo Faisal was setting up a laboratory at Imperial College in London when he made the chance discovery.

Faisal and his team reconfigured two of the cameras and fixed them to a harness which attaches to the head, making a £43 device that opens up the use of computers to the 6 million people in the UK with restricted hand movement.

   

      http://www.theguardian.com/science/2014/oct/05/scientist-creates-43-pound-eye-tracker-computers-restricted-mobility