Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Axenfeld-Rieger syndrome ?
    ### Response:
    Axenfeld-Rieger syndrome is primarily an eye disorder, although it can also affect other parts of the body. This condition is characterized by abnormalities of the front part of the eye, an area known as the anterior segment. For example, the colored part of the eye (the iris), may be thin or poorly developed.
    