Usher Syndrome, Type Iiia, also known as usher syndrome type 3, is related to usher syndrome, type ij and usher syndrome, type iic. An important gene associated with Usher Syndrome, Type Iiia is CLRN1 (Clarin 1), and among its related pathways/superpathways are Olfactory Signaling Pathway and Sensory processing of sound. Affiliated tissues include eye and retina, and related phenotypes are sensorineural hearing impairment and abnormal electroretinogram