Foreign Correspondent

When it comes to stem cells, mainstream scientists in the UK and America tell us their potential is both exciting and unlimited. But, they hasten to add, treatments for most illnesses are still years away and more research needs to happen. For Wilma Clarke, there is no doubt. Her three-year-old daughter, Dakota, born with a rare condition that left her almost blind and suffering from balance problems, can see things that she could not see before.