Surgery When patient is asked to look down, his upper eyelid fails to follow the rotation of the eyeball and thus lags behind, this eye sign is known as: A Von Graffe's sign. B Joffroy's sign. C Moebius sign. D Stellwag'sign. 💡 Explanation When patient is asked to look down, his upper eyelid fails to follow the rotation of the eyeball and thus lags behind, this eye sign is known as: ✓ Correct Answer: A. Von Graffe's sign.