Fixation, saccades, and pursuits reach adult levels by approximately how many months of age?

• A. 2 months
• B. 4 months
• C. 6 months
• D. 12 months

Answer: (C)

Oculomotor control reaches adult-like performance around six months because the neural systems that govern eye movements mature significantly by this age. Fixation becomes more stable, allowing the eyes to hold a stationary target with minimal drift. Saccades—the rapid eye movements used to shift gaze—become more accurate and properly scaled in amplitude and velocity, so the gaze lands on targets reliably. Smooth pursuit, the ability to steadily track a moving object, develops enough to be continuous and well-coordinated, rather than jerky or intermittent. This improvement reflects maturation of the brain networks involved in eye movement planning and control, including cortical areas, the superior colliculus, cerebellar circuits, and their connections. Earlier months show ongoing development in these systems, while by about six months they often reach adult-like levels.