A brave six-year-old girl has had her sight restored thanks to 'incredible' life-changing eye gene therapy on the NHS . Little Saffie Sandford, from Stevenage in Hertfordshire, has the rare inherited condition Leber’s Congenital Amaurosis (LCA), which prevents cells in the eye from making a type of protein needed for normal vision. Babies and children with the condition have low vision in daylight, and no vision at all in low light. They can lose their sight completely in adulthood. Saffie, a "