Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) gyrate atrophy of the choroid and retina ?
    ### Response:
    Gyrate atrophy of the choroid and retina, which is often shortened to gyrate atrophy, is an inherited disorder characterized by progressive vision loss. People with this disorder have an ongoing loss of cells (atrophy) in the retina, which is the specialized light-sensitive tissue that lines the back of the eye, and in a nearby tissue layer called the choroid.
    