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
What is not a feature of paralytic squint - 
Select and explain. 
A. Diplopia, B. Decreased visual acuity, C. Limited movement of eye ball, D. Change of head posture
B: Decreased visual acuity
Answer: B: Decreased visual acuity 
Explanation: Paralytic squint usually occurs in adults when visual acuity has already been developed. Therefore amblyopia does not occur usually and visual acuity is normal.