Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to lattice corneal dystrophy type II ?
    ### Response:
    Lattice corneal dystrophy type II is caused by mutations in the GSN gene. This gene provides instructions for making a protein called gelsolin. This protein is found throughout the body and helps regulate the formation of the network of protein filaments that gives structure to cells (the cytoskeleton).
    