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
Spiral field defect is a feature of: 
Select and explain. 
A. Amblyopia exanopsia, B. Hysterical amblyopia, C. Malingering, D. Toxic amblyopia
B: Hysterical amblyopia
Answer: B: Hysterical amblyopia 
Explanation: Ans. Hysterical amblyopia