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A Grandfather Regained His Sight After 22 Years Of Blindness - This Was The First Thing He Wrote

Warning: might make you well up a bit.

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Everyone is at risk for macular degeneration as they age, but people who have a family history or who smoke are more likely to develop it.

The tiny telescope is implanted in the eye when the lens is removed. This takes the place of the individual's own lens and stays there permanently. It doesn't restore sight to its previous level, but allows them to recognise faces, read signs and generally see where they're going.