Although iPSC lines were established from patients with defects in RHO [31], MAK [74], PDE6A [75], PRPF31 [76], NR2E3 [77] and EYS [78], molecular mimicry of the iPSC-derived retina to the degenerative retina in human RP has not been confirmed. The gene discussed is PDE6A; the disease is retinitis pigmentosa 1.