Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) X-linked Charcot-Marie-Tooth disease type 5 ?
    ### Response:
    X-linked Charcot-Marie-Tooth disease type 5 (CMTX5) is a neurological condition characterized by peripheral neuropathy, early-onset bilateral profound sensorineural hearing loss, and optic neuropathy leading to visual impairment. Peripheral neuropathy often begins with the lower extremities during childhood with foot drop and difficulty walking.
    