Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Optic atrophy 1 ?
    ### Response:
    Optic atrophy 1 is a condition that mainly affects vision, but may include other features. Vision loss typically begins within the first decade of life; severity varies widely among affected people (from nearly normal vision to complete blindness), even among members of the same family.
    