Groundbreaking gene therapy has restored vision to two men with a rare inherited eye disease who were expected to go blind.
Now, scientists hope early intervention with the surgical treatment will halt progression of the devastating disorder, choroideremia, before patients are robbed of their sight.
It is the first time gene therapy has successfully been applied to the light-sensitive photoreceptors of the retina, the digital camera at the back of the eye.
More top news
Travel industry chiefs have called for universal safety standards to be introduced across Europe, to help prevent future tragedies.
The tragic deaths of two children on a Thomas Cook Corfu holiday in 2006 could lead to a crisis of confidence for the travel industry.
Sunny spells for tomorrow, although the further we go into the weekend then we will see outbreaks of rain moving south eastwards