Purpose. Detection in the temporal visual field develops more rapidly than detection in the nasal visual field (Lewis & Maurer, Vision Res., 1992). Here we investigated whether, at 3 months of age, flicker affects orienting equally in both visual fields. Methods. We used static perimetry to measure detection at 30, 45, 60, and 75 deg in the temporal visual field and at 15, 30, 45, and 60 deg in the nasal visual field. After fixating centrally, 3-month-olds were shown 6 deg peripheral lights of 5 cd/m2 that were either flickering at 6 Hz (n=30) or static (n=30). An observer reported the direction of the first eye movement away from center. We compared the proportion of eye movements toward the light with the proportion of eye movements in the same direction on control trials with no peripheral stimulus. Results. Flicker enhanced orienting in the temporal field (p<.01) but not in the nasal field (p>.05). In the temporal field, infants oriented toward the flickering lights out to 60 deg (ps<.01) but showed no evidence of orienting toward the static lights even at 30 deg (ps>.05). In the nasal field, infants oriented out to 15 deg (p<.01) whether the lights were flickering or static. In a second study of 60 3-month-olds (McKee, B.Sc. thesis, 1995), we replicated the findings and also showed that infants detected the static light at 15 deg in the temporal field (p>.01). Conclusions. Our finding that flicker enhanced orienting in the temporal, but not the nasal, visual field at 3 months of age provides further evidence of different patterns of development in the two visual fields.