Physiology All India exam 14d9227b 'Swinging flashlight' test can be helpful to elicit A Argyll Robeson pupil B Adie's tonic pupil C Marcus Gunn pupil D Subtle inequality in pupil size High-Yield Explanation The relative afferent pupillary defect(RAPD) - Marcus Gunn pupil- can be elicited with the swinging flashlight test.