Artificial corneas restore sight for the first time
Scientists hope the breakthrough will also slash the cornea transplant waiting list which every year falls short by more than 500 in Britain alone.
The new technique involves growing human tissue or collagen in the laboratory and then shaping it using a contact lens mould.
Damaged and scarred tissue from the front of the eye is then removed and the "biosynthetic" replacement is stitched in its place.
Eventually existing cells and nerves in the eye grow over the artificial cornea incorporating it fully into the eye.

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