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: Pharmacology
[{'content': 'Acetazolamide decreases intraocular pressure by what mechanism: September 2010 \nSelect and explain. \nA. Decreases aqueous humor production, B. Decreases vitreous volume, C. Increased drainage of aqueous, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A: Decreases aqueous humor production Acetazolamide is a carbonic anhydrase inhibitor, which means that it forces the kidneys to excrete bicarbonate (HCO;), thus re-acidifying the blood. It also lowers intraocular tension by decreased formation of aqueous humour (It is rich in bicarbonate)', 'role': 'assistant'}]