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
Hutchinson's pupil is characterised by 
Select and explain. 
A. Initial ipsilateral miosis, later followed by dilatation, B. Initial ipsilateral miosis and contralateral dilatation, C. Ipsilateral mydriasis and contralateral miosis, D. None of the above
A: Initial ipsilateral miosis, later followed by dilatation
Answer: A: Initial ipsilateral miosis, later followed by dilatation 
Explanation: Ans. Initial ipsilateral miosis, later followed by dilatation