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People with damaged corneas have had their sight restored by implants made of collagen – which eventually anchor themselves into the recipient's eye. Corneal damage, which results in seriously blurred sight, is currently treated either by implanting corneas from a human donor – which are in short supply – or an unsightly prosthesis, which looks like a pinhole camera. Now May Griffith at Linköping University in Sweden and colleagues have developed a cornea from collagen moulded to the shape and size of a natural human cornea. "It looks like a contact lens," says Griffith. The difference is that this "biosynthetic" cornea encourages the person's own cells to grow into its matrix, since it is made out of a similar substance to a natural one.
(Source: New Scientist)
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