The contact lens that can help the blind see again

The groundbreaking operation brought significant improvements in vision within a matter of weeks.
The procedure uses a person's own cells to heal damage to the cornea - the transparent outermost layer of the eye.

It is carried out under local anaesthetic, with patients returning home within two hours of surgery, removing the need for expensive hospital stays.
The three patients treated so far had very poor vision caused by corneal disease - the fourth most common form of blindness, affecting around 10million worldwide.

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