Below is an instruction from Human. Write a response.
    ### Instruction:
    What causes Juvenile retinoschisis ?
    ### Response:
    What causes juvenile retinoschisis? Mutations in the RS1 gene cause most cases of juvenile retinoschisis. The RS1 gene provides instructions for producing a protein called retinoschisin, which is found in the retina. Studies suggest that retinoschisin plays a role in the development and maintenance of the retina, perhaps playing a role in cell adhesion (the attachment of cells together).
    