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': 'Which type of tonometer is best for measuring IOT – \nSelect and explain. \nA. Schiotz tonometer, B. Applanation tonometer, C. Pulse air tonometer, D. Indentation tonometer', 'role': 'user'}, {'content': "Answer: B \nExplanation: Measurement of intraocular pressure (1OP)\n\nMeasurement of IOP is done by:-\n\n\nManometry :- It is the only direct measure of IOP.\nTonometry :- It is an indirect method of measurement of IOP. Following types of tonometers are there:-\n\ni)\xa0\xa0\xa0 Indentation (impression) tonometer :- These are the most commonly used tonometers. An example is Schiotz tonometer.\nii)\xa0 Applanation tonometer :- Goldmann applanation tonometer is the most accurate tonometer. Other types of applanation tonometers are perkin 's tonometer, pneumatic tonometer; air-puff tonometer, Pulse air tonometer, Tono pen.", 'role': 'assistant'}]