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
In a patient with senile cataract the macular functions can be tested by all except: 
Select and explain. 
A. Two-light discrimination test, B. Swinging flash light test, C. Maddox rod test, D. Laser interferometry
B: Swinging flash light test
Answer: B: Swinging flash light test 
Explanation: Ans. Swinging flash light test