Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Dominant optic atrophy ?
    ### Response:
    Dominant optic atrophy (DOA) is an inherited optic nerve disorder characterized by degeneration of the optic nerves. It typically starts during the first decade of life. Affected people usually develop moderate visual loss and color vision defects. The severity varies and visual acuity can range from normal to legal blindness.
    