In the normal patient the pupils will constrict then relax a little each time the light is swung to them. Now a patient with a relative afferent defect. The pupils will be equal size in both light and dark. Both pupils will react to light, although someti

Pupil dilation is performed to purposefully increase the size of the pupils during an eye exam so that the eye doctor can fully examine the health of the optic nerve and retina. The exam is critical to preventing and treating eye conditions that could pot

Near Response Pupil Test . The near response pupil test measures the pupil's response to a near target.   This test will be performed in a room with normal lighting. Your doctor will ask you to look at a distant object, then move a small object