Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) lattice corneal dystrophy type II ?
    ### Response:
    Lattice corneal dystrophy type II is characterized by an accumulation of protein clumps called amyloid deposits in tissues throughout the body. The deposits frequently occur in blood vessel walls and basement membranes, which are thin, sheet-like structures that separate and support cells in many tissues.
    