US and German scientists have designed a bionic eye to allow blind people to see again.
It comprises a computer chip that sits in the back of the individual's eye, linked up to a mini video camera built into glasses that they wear.
Images captured by the camera are beamed to the chip, which translates them into impulses that the brain can interpret.
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We are hoping this will be enough for the person to be able to make their way through a building, find a door or window and avoid obstacles for example.
"To us, the images look very basic but for someone who was previously blind they are a massive step forward."
But he added: "There is still quite a bit of work that will be needed to fine tune it. Being able to see faces will be quite a bit down the line."
He said training the individual to learn how to interpret the blurry images should help.
Anita Lifestone of the RNIB(Royal National Institute of the Blind), said: "This is a revolutionary piece of technology and really has the potential to change people's lives. But we need to be aware it is still some way in the future."