Unique Blind Child Who Sees From His Ears - The seven-year-old Lucas Murray is believed to be the first in Britain to use echoes to visualize his surroundings. To "see" the world around him, he clicks his tongue on the roof of his mouth and listens to the echo that bounces back. He was born blind. From the sound, he can make out the location, depth and shape of objects around him, allowing him to navigate even unfamiliar areas.