Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Bietti crystalline corneoretinal dystrophy ?
    ### Response:
    Bietti crystalline corneoretinal dystrophy is an inherited eye disease. Symptoms include crystals in the cornea (the clear covering of the eye); yellow, shiny deposits on the retina; and progressive atrophy of the retina, choriocapillaries and choroid (the back layers of the eye).
    