Lens Lets People Upgrade Their Eyes to HD

Patients are having their eyes fitted with an artificial lens that allows them to see in high definition.

Surgeons begin the process by implanting the lens into the eye using the standard procedure for cataracts.

Then, for the first time in Britain, they can fine-tune the focus of the lens several days later.

The technique gives patients vision so sharp that it is even better than 20/20 – the best an adult can usually hope for.'

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