Below is an instruction from Human. Write a response.
    ### Instruction:
    What is the outlook for Retinoblastoma ?
    ### Response:
    The prognosis (chance of recovery) and treatment options depend on the following:         - Whether the cancer is in one or both eyes.    - The size and number of tumors.    - Whether the tumor has spread to the area around the eye, to the brain, or to other parts of the body.
    