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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.