Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Lenz microphthalmia syndrome ?
    ### Response:
    Lenz microphthalmia syndrome is a genetic disorder that causes abnormal development of the eyes and several other parts of the body.  Eye symptoms vary, but may include underdeveloped (small) or absent eyes, cataract, nystagmus, coloboma (a gap or split in structures that make up the eye), and glaucoma.
    