BBS5 and cone-rod dystrophy: Up till now, different types of variants in the BBS5, such as missense, nonsense, deletions, and insertions, have been reported that are directly or indirectly involved in syndromic retinal dystrophy disease such as RP (OMIM: 268000) and cone-rod dystrophy (CRD, OMIM: 120970), and other diseases such as polydactyly (OMIM: 603596) [11,14].