Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Usher syndrome, type 1C ?
    ### Response:
    Usher syndrome is a genetic condition characterized by hearing loss or deafness, and progressive vision loss due to retinitis pigmentosa. Three major types of Usher syndrome have been described - types I, II, and III.  The different types are distinguished by their severity and the age when signs and symptoms appear.
    