Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to color vision deficiency ?
    ### Response:
    Mutations in the OPN1LW, OPN1MW, and OPN1SW genes cause the forms of color vision deficiency described above. The proteins produced from these genes play essential roles in color vision. They are found in the retina, which is the light-sensitive tissue at the back of the eye.
    