Goalball

There is a sport for visual impaired people, this game is called goal ball.  It consists of three on three with a ball that contains bells in it for them to hear.  The goal of the game is to pass the ball behind the thrre players by rolling the ball either hard or soft depending the type of player.  One team is on the offense and having pass it to each other, then the defensive team can go on the offense.  The game is played in two halves, of five or seven minute halves.  This game is played in regional, national and international competition. 

http://www.recreationtherapy.com/tx/txblind.html