'Life-changing' gene therapy for children born blind / Japan researchers target degenerative eye disease with gene therapy / First gene-editing therapy may cure blood disorder / New technology could open up gene therapies to more patients at less cost / Gene therapy halts progression of rare neurodegenerative disease in Toronto boy / Top FDA official overrules staff to approve gene therapy that failed trial / Gene therapy may cure rare diseases. But drugmakers have few incentives, leaving families desperate / Gene therapy enables five children who were born deaf to hear / Great Ormond Street hoping to license gene therapy for 'bubble baby' syndrome