Altered electroretinogram, reduced spatial luminance contrast and red-green color vision impairment have been described in both DMD patients and mice with DMD gene deletions downstream of exon 30 (lacking all dystrophin isoforms) (D’Souza et al., 1995; Costa et al., 2007; Costa et al., 2011; Barboni et al., 2013). Here, DMD is linked to Duchenne muscular dystrophy.