A group of blind patients can now read again after being fitted with a life-changing implant at the back of the eye.
A surgeon who inserted the microchips in five patients at Moorfields Eye Hospital in London says the results of the international trial are "astounding".
Sheila Irvine, 70, who is registered blind, told the BBC it was "out of this world" to be able to read and do crosswords again.
The technology offers hope to people with an advanced form of dry age-related macular degeneration (AMD), called geographic atrophy (GA), which affects more than 250,000 people in the UK and five million worldwide.
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