This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuro-ophthalmology, Subject name: Ophthalmology
[{'content': 'In unilateral Afferent pupillary defect, when light is moved from normal to affected eye, there is - \nSelect and explain. \nA. Dilatation in affected side and constriction in normal eye, B. Dilatationin normal eye andc onstriction in affected side, C. Dilatation in both pupils, D. Constriction in both pupils', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Affetent signals don&;t reach the brain, so expected pupillary constriction will not be seen on the affected eye on showing the light. Normal eye will dilate. So both eyes dilated. Ref: Ref: AK Khurana 4thE pg:292', 'role': 'assistant'}]