Which visual characteristic does an infant at 6 weeks of age exhibit?

At 6 weeks of age, an infant begins to show signs of developing binocular vision, which is the ability to use both eyes in coordination to perceive depth and dimension. This is an early developmental milestone that indicates the infant is starting to integrate the visual input from both eyes, enhancing their ability to track and focus on objects. At this stage, infants are generally capable of making some initial attempts at convergence, which refers to the inward movement of the eyes toward each other as they focus on nearby objects.

The other options refer to different aspects of visual development or reflexes that are not typical at this age. For instance, the doll's eye reflex involves automatic eye movements and is a separate neurological response. Visual acuity typically improves as infants grow, but 20/40 to 20/60 vision is more characteristic of older infants rather than those at 6 weeks. Peripheral vision also develops over time and is not fully established in infants as young as 6 weeks; their visual field is much more limited compared to older children and adults.