In humans, mutations in Cav1.4 subunits result in a spectrum of visual disorders from incomplete stationary night blindness (CSNB2) to progressive cone-rod dystrophy (Hauke et al., 2013; Michalakis et al., 2014; De Silva et al., 2021; Du et al., 2022). This evidence concerns the gene CACNA1F and Rod-cone dystrophy.