Blind cricket is very similar to cricket played by the sighted. The main difference being that the ball is bowled under arm and makes a noise that can be heard by the players.
Traditionally, this game is played between two teams of eleven players, made up of players with sight varying from totally blind to those with partial sight. The game is generally played on a one-day basis, with 40 overs per side and everyone encouraged to participate either with bat or ball.
This format is used at an international level, but in recent times the sport has moved into the shorter Twenty/20 version of the game which can be over in 2 or 3 hours, maximum.
Still played similar to the traditional version of blind cricket, the only differences being the game is only 20 overs a side, boundaries are shorter and you can play with as little as seven players a side.
The World Blind Cricket Council administers the game on an international level and due to the NZBCA's affiliation with this governing body, is able to participate in international competitions such as the Blind Cricket World Cups and test matches against other countries.
In New Zealand, the NSO (National Sporting Organisation) is Blind Sport New Zealand (BSNZ), which promotes opportunities for blind and low vision athletes to participate in National and International events (which include the Paralympics).