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
Ocular complications in herpes zoster ophthalmicus usually appear: 
Select and explain. 
A. At the subsidence of skin eruptions, B. Simultaneous with cutaneous lesions, C. Two days after the skin eruptions, D. During stage of erythematous skin lesions
A: At the subsidence of skin eruptions
Answer: A: At the subsidence of skin eruptions 
Explanation: Ans. At the subsidence of skin eruptions