CRX and Abnormal retinal morphology: Most retinal disease-related genes that were detected in CRX-transduced cells are specifically expressed in photoreceptor cells (Cremers et al., 2002; Ikeda et al., 2002; Rachel et al., 2012; Roosing et al., 2014; Smith et al., 2009; Trifunović et al., 2008; Yu and Hazlett, 2006).