Although we tried Western blotting using commercially available antibodies against an N-terminal peptide of EYS, we could not detect a specific signal clearly at the expected size of around 300 kDa for cell lysates derived from photoreceptor-directed fibroblasts and Y79, as the authors of zebrafish models of EYS-RP claimed in a previous paper [38]. This evidence concerns the gene EYS and retinitis pigmentosa 1.