Recessive mutations of the myosin VIIA (MYO7A) gene are reported to be responsible for both a deaf–blindness syndrome (Usher type 1B [USH1B] and atypical Usher syndrome) and nonsyndromic hearing loss (HL; Deafness, Neurosensory, Autosomal Recessive 2 [DFNB2]). The gene discussed is MYO7A; the disease is Usher syndrome.