Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) congenital cataracts, facial dysmorphism, and neuropathy ?
    ### Response:
    Congenital cataracts, facial dysmorphism, and neuropathy (CCFDN) is a rare disorder that affects several parts of the body. It is characterized by a clouding of the lens of the eyes at birth (congenital cataracts) and other eye abnormalities, such as small or poorly developed eyes (microphthalmia) and abnormal eye movements (nystagmus).
    