Fig. 14. Electro-oculographic recording of vertical saccades in a patient with limited downward gaze. Upward (U) saccades are more rapid than downward (D) saccades, suggesting inferior rectus paresis. Upper tracing: eye position; lower tracing: peak velocity. (Metz HS: Saccades with limited downgaze. Arch Ophthalmol 98:2204, 1980. Copyright 1980, American Medical Association)