Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) septo-optic dysplasia ?
    ### Response:
    Septo-optic dysplasia is a disorder of early brain development. Although its signs and symptoms vary, this condition is traditionally defined by three characteristic features: underdevelopment (hypoplasia) of the optic nerves, abnormal formation of structures along the midline of the brain, and pituitary hypoplasia.
    