[hereditary disorder believed to occur in two forms: (1) characterized by congenital deafness and severe retinitis pigmentosa, and (2) in which the inner ear and retina are less severely affected; most cases are transmitted as autosomal recessive trait, but some forms are X-linked. ( CSP )] (UMLS (CSP) C0271097) =Congenital Abnormality; Disease or Syndrome =Genetic Condition; retinitis pigmentosa; congenital deafness;