Which test compares the direct and consensual responses to the pupil?

The swinging flashlight test is specifically designed to assess both direct and consensual responses of the pupils to light. During this test, a clinician shines a light into one eye and observes the reaction of that eye (the direct response) and the opposite eye (the consensual response). A normal response is characterized by both pupils constricting when light is shone in either eye. This test is particularly useful in evaluating the integrity of the optic nerve and pathways for both eyes.

In contrast, the pupil reflex test may involve various methods to assess pupil responses but does not specifically refer to the swinging flashlight method. Direct response measurement is not a standard term used in the context of pupil testing, and visual acuity assessment measures the clarity of vision rather than pupil response. Thus, the swinging flashlight test is the most accurate choice for comparing direct and consensual pupil responses.