For example, variants of MYO7A are associated with both autosomal dominant (DFNA) and recessive (DFNB) nonsyndromic hearing loss as well as Usher syndrome type 1 (USH) (Weil et al., 1995; Liu et al., 1997; Weil et al., 1997). This evidence concerns the gene MYO7A and Usher syndrome type 1.