Compounds, compositions and methods for the treatment of retinal degenerative diseases, such as retinitis pigmentosa, Lebers congenital Amaurosis, Syndromic retinal degenerations, age-related macular degeneration and Usher Syndrome, and hearing loss associated with Usher Syndrome are described herein. Usher Syndrome, a rare genetic disorder and a leading cause of deafness and blindness, is associated with a mutation in any one of ten genes.