RHO and retinitis pigmentosa 1: RP patient-derived iPSCs with RHO mutations combined with genome editing can correct RP-related mutations.330 In one study, human iPSC-derived RPE cells were transplanted to a pig retina, which developed normal RPE morphology and facilitated photoreceptor survival.331 Transplantation of human embryonic stem cell-derived retinal organoids have been tested in RPE-loss rats and reveals the possibility of host organoid survival and integration of organoid and retina.