Right-sided relative afferent pupillary defect

Right-sided relative afferent pupillary defect in a man with optic nerve glioma. When the unaffected left eye is stimulated by light, both pupils constrict (top). When the light is then swung over to the affected right eye, both pupils dilate (bottom). This indicates that pupillomotor conduction through the right optic neve is markedly impaired.Thompson HS, Corbett JJ: Swinging flashlight test. Response to Landau WM. Clinical neuromythology. I. The Marcus Gunn phenomenon: Loose cannon of neuro-ophthalmology. In Neurology 1988;38:1141-1142. In: Neurology, 1989;38:154-156curriculum_fellow; KBDrapd; KBDmeasurerapd; KBDpupillarychangesrapd; KBDpupillarypathologyafferentpupillarydefec