Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) lattice corneal dystrophy type I ?
    ### Response:
    Lattice corneal dystrophy type I is an eye disorder that affects the clear, outer covering of the eye called the cornea. The cornea must remain clear for an individual to see properly; however, in lattice corneal dystrophy type I, protein clumps known as amyloid deposits cloud the cornea, which leads to vision impairment.
    