Peripheral vision is a part of vision that occurs outside the very center of gaze. There is a broad set of non-central points in the visual field that is included in the notion of peripheral vision. "Far peripheral" vision refers to the area at the edges of the visual field, "mid-peripheral" vision exists in the middle of the visual field, and "near-peripheral", sometimes referred to as "para-central" vision, exists adjacent to the center of gaze.