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': 'Arden index is related to - \nSelect and explain. \nA. ERG, B. EOG, C. VER, D. Perimetry', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer- B. EOG Arden index is related to ElectrooculographyInterpretation of results:- Results of EOG are interpreted by finding out the Arden ratio as follows :Normal curve values are 185 or above.Subnormal curve values are less than 150.Flat curve values are less than 125.', 'role': 'assistant'}]