Final answer:
Binocular vision is the ability to fuse two ocular images into one cerebral picture, allowing us to perceive depth and see the world in three dimensions.
Step-by-step explanation:
The ability to fuse two ocular images into one cerebral picture is called binocular vision. Binocular vision is what allows us to perceive depth and see the world in three dimensions. It is achieved through the coordinated movement of the two eyes and the integration of visual information in the brain.