Eye movement recordings were performed during binocular viewing in eight children with binocular infrared video-oculography (VOG; Sensorimotoric Instruments [SMI], Berlin) and in two infants with search coils (Skalar, Delft, The Netherlands) in a magnetic field (CNC Engineering, Seattle, WA). Temporal resolution for VOG and search coils is 60 and 1000 Hz, respectively. The spatial resolution for VOG is 0.2°. Subjects sat independently or in a parent’s lap, with the head manually restrained. They viewed a back-projected visual stimulus on a screen subtending approximately 60° at a fixation distance of 60 to 80 cm. Gaze holding was measured in primary gaze in the dark and while fixating a point target at eccentricities of 15° up, down, right, and left. To elicit saccades, we pseudorandomly stepped the target between 5° and 20° horizontally or vertically. Smooth pursuit was elicited by moving a point target sinusoidally ±10° along the horizontal meridian at peak velocities of 10, 20, and 30 deg/s. Optokinetic nystagmus (OKN) was elicited by drifting square wave gratings with a spatial frequency of 0.1 cyc/deg and >80% contrast horizontally or vertically on a screen at constant velocities of 15, 30, and 45 deg/s. Vestibulo-ocular reflex (VOR) was elicited by rotating the child ±10° in complete darkness about an earth vertical axis at frequencies of 0.16, 0.32, and 0.50 Hz deg/s.