This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
[{'content': 'Not true about macular function test is: \nSelect and explain. \nA. Two-point discrimination, B. Maddox rod, C. Laser interferometry, D. Retinogram', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans.Retinogram', 'role': 'assistant'}]