Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to X-linked congenital stationary night blindness ?
    ### Response:
    Mutations in the NYX and CACNA1F genes cause the complete and incomplete forms of X-linked congenital stationary night blindness, respectively. The proteins produced from these genes play critical roles in the retina.  Within the retina, the NYX and CACNA1F proteins are located on the surface of light-detecting cells called photoreceptors.
    