Bifocals in the brain

Seeing — arguably our most important way of perceiving the world — mostly happens without conscious intent. We see much better in the center of our visual field (along the visual axis) than in the periphery. So when our brain detects an object of interest in the periphery of our visual field, it immediately initiates an eye movement so our visual axis intersects with those objects. Once an object is in our direct line of sight, we can perceive it in far more depth and detail. Now researchers report that visual information from near and far space are processed with differing degrees of acuity.