USH2A and hereditary disease: The inherited pattern of patients with a genetic disease was autosomal dominant (138, 29.9%), autosomal recessive (251, 54.5%), X-linked (42, 9.1%), mitochondrial (29, 6.3%), and one patient had a multimendelian phenotype of syndromic RP due to mutations in the USH2A gene with recessive inheritance and the RHO gene which is autosomal dominant.