Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Marinesco-Sjgren syndrome ?
    ### Response:
    Marinesco-Sjgren syndrome is a condition that has a variety of signs and symptoms affecting many tissues. People with Marinesco-Sjgren syndrome have clouding of the lens of the eyes (cataracts) that usually develops soon after birth or in early childhood. Affected individuals also have muscle weakness (myopathy) and difficulty coordinating movements (ataxia), which may impair their ability to walk.
    