Stem cell therapy could 'help the blind see within 6 weeks'

Stem cells derived from spare IVF embryos left over from fertility treatment could help blind patients see within six weeks, according to a new study.

The US Food and Drug Administration (FDA) has given the go-ahead for the controversial transplant of embryonic stem cells into the eyes of patients with Stargardt's macular degeneration, where the light-sensitive retina cells at the back of eye are destroyed.

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