PRDM13-OE and wildtype littermates were provided dox for 10 days, and eyes underwent immunostaining for key retinal cell type markers after the time in which retinal degeneration no longer progresses, either 3 weeks after the removal of dox (Fig. 5) or 11 weeks after the removal of dox (Supplementary Fig. S6). This evidence concerns the gene PRDM13 and retinal degeneration.