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': 'Perimetry is a test to assess the – \nSelect and explain. \nA. Visual acuity, B. Intraocular pressure, C. Visual field, D. Depth of the anterior chamber', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The tests used to measure the field of vision are confrontation test and Perimetry.', 'role': 'assistant'}]