Losing your sight must be incredibly hard. So it's great to hear that some forms of blindness could be reversible.
If you have choroideremia, a faulty gene means that cells in your retina will slowly start to die. So surgeons have tested inserting a functional version of the gene into the cells. Six people with degenerative blindness experienced improvements in their sight.
Choroideremia isn't the only cause of blindness, but this treatment could be extended to other genetic conditions such as age-related macular degeneration. I think I'll be keeping an eye on this research!