USH2A and Usher syndrome: This eliminates a major dead corner in diagnostic testing of deaf‐blindness genes and enables highly efficient testing by a single technique, targeted NGS comprising all exons of genes for Usher syndrome, clinically overlapping conditions, and the repeatedly reported deep‐intronic c.7595‐2144A>G mutation in USH2A. Deep‐intronic mutations apart from c.7595‐2144A>GUSH2A (which accounted for only four alleles in our study) have been reported (Liquori et al.