Scientists develop video game to treat lazy eye
5 April 2012 Last updated at 11:35 BST
Eye specialists at Glasgow Caledonian University have developed a video game to treat a common sight problem in children.
Children who suffer from a lazy eye can play a Tetris-style game instead of wearing an eye patch.
Ten-year-old Calum Stillie found his sight was much better after playing the game for just a week.