A third patient, a Yorkshire man who volunteered to take part in a similar trial in Britain, had a similar transplant operation last week involving the injection of embryonic stem cells into the damaged retina at the back of the eye.

The three people are the first wave of patients to receive controversial transplants of embryonic cells as part of an ambitious attempt to treat a range of incurable diseases with stem cells that have the power to develop into any of the dozens of specialised tissues of the body.

Further information here.

The Lancet report could be found here.