PARP1 and retinitis pigmentosa 1: Previous studies found that treatment with Ola—a PARP inhibitor that favors PARP‐2 over PARP‐1 (Table 1)—protected photoreceptors in the rd1 mouse model for recessive RP (Dong et al. 2023; Sahaboglu et al. 2016; Yan et al. 2022), but its effect on RhoI255del mutant retina was unclear.