This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autonomic nervous system, Subject name: Pharmacology
Fundoscopic examination is typically done in 35yr old male using 
Select and explain. 
A. Homatropine, B. Phenylephrine, C. Tropicamide, D. Atropine
C: Tropicamide
Answer: C: Tropicamide 
Explanation: IN adults fundoscopic examination is done usually with tropicamide eye drops as onset of action is within 15 to 20 min and the duration of action is sho when compared to other drugs Ref: KDT 6th ed pg 115