Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Walker-Warburg syndrome ?
    ### Response:
    Walker-Warburg syndrome is an inherited disorder that affects development of the muscles, brain, and eyes. It is the most severe of a group of genetic conditions known as congenital muscular dystrophies, which cause muscle weakness and wasting (atrophy) beginning very early in life.
    