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': 'All except one are tests for macular functions – \nSelect and explain. \nA. Laser interferometry, B. Two point discrimination, C. Maddox rod test, D. Retinal ERG Electroretinogram', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Macular function tests \n\nWhile evaluating the retinal function, some tests are used s\nThese tests are :\n\nSimple macular function tests\n\nTwo-point discrimination test (Cardboard test)\nMaddox rod test\nColoured light test\nModified photostress test\nEntoptic view test\nAmsler grid test\n\nOther tests\n\nBlue field entoptoscopy\nLaser interferometry\nPotential acuity meter\nFlying corpuscle test', 'role': 'assistant'}]