From Longman Dictionary of Contemporary Englishperipheral visionperipheral visionyour ability to see things to the side of you when you look straight ahead → peripheral
Examples from the Corpus
peripheral vision• I was taking it slowly when I caught a flash of red on the edge of my peripheral vision.• Tracers from our own guns flowed in my peripheral vision.• The sailor must have caught my sudden motion in his peripheral vision: he looked up suddenly, and dimensions shifted again.• This allows them to maintain the same panoramic peripheral vision over a wide range of light levels.• I held Ellie in my peripheral vision, watching her long neck and the swell of her chest from across the room.• I made do with peripheral vision, which, after all, is the next best thing.• Use your peripheral vision widely when moving from place to place. 