BBC NEWS | England | Dorset | Blind boy uses his ears to 'see'

A seven-year-old blind boy has been taught to "see" using his ears.

Lucas Murray from Poole in Dorset has learned to use echoes to picture the world around him - similar to sonar techniques used by bats and dolphins.

He clicks his tongue on the roof of his mouth and from the sound that returns he tries to work out the distance, shape, density and position of objects.

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