Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Juvenile retinoschisis ?
    ### Response:
    Juvenile retinoschisis is an eye condition characterized by impaired vision that begins in childhood and occurs almost exclusively in males. The condition affects the retina, which is a specialized light-sensitive tissue that lines the back of the eye. This affects the sharpness of vision.
    