In this episode, supported by the Medical Research Council, we discover how researchers are letting the light shine in, literally, by bringing discoveries about the underlying genetic faults that cause eye diseases all the way through to game-changing clinical trials of gene therapy designed to save sight.With RP patient advocate and fundraiser Ken Reid, Robin Ali from Kings College London, and Roly Megaw and Chloe Stanton from the MRC Human Genetics Unit, in the Institute of Genetics and Molecular Medicine at the University of Edinburgh.Full show notes, transcript, music credits and references online at GeneticsUnzipped.comFollow us on Twitter @GeneticsUnzipGenetics Unzipped is written and presented by Kat Arney with reporting by Georgia Mills, and audio production by Hannah Varrall and transcription by Viv Andrews. This podcast is produced by First Create the Media for the Genetics Society - one of the oldest learned societies in the world dedicated to supporting and promoting the research, teaching and application of genetics.