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
Complete unilateral congenital cataract should preferably be operated: 
Select and explain. 
A. Within a few weeks of bih, B. At the age of 6 months, C. At the age of 2 years, D. At the age of 5 years
A: Within a few weeks of bih
Answer: A: Within a few weeks of bih 
Explanation: Ans. Within a few weeks of bih