Usher Syndrome, Type Ik, also known as usher syndrome type 1k, is related to retinitis pigmentosa and usher syndrome, type i. An important gene associated with Usher Syndrome, Type Ik is USH1K (Usher Syndrome 1K (Autosomal Recessive)). Affiliated tissues include retina and eye, and related phenotypes are motor delay and rod-cone dystrophy