Pronunciation: [kˈɔːnəɹ ɒvðɪ ˈa͡ɪ] (IPA) 
The phrase "corner of the eye" is pronounced /ˈkɔːnər əv ði aɪ/. The first syllable is stressed, and the "o" sound is long. The "r" sound is also emphasized, and the "n" and "r" sounds blend together. "Of" is pronounced with a schwa sound for the "o" and a soft "v" sound for the "f." "The" uses a voiced "th" sound, and "eye" rhymes with "buy" and ends with an "ee" sound.
"Corner of the eye" refers to the peripheral vision area located at the outer edge of the visual field, alongside the outer corner of the eye socket. It is the region where objects and movements can be detected without directly focusing on them. This visual perception occurs due to the presence of rod cells, one of the types of photoreceptor cells in the retina, which are responsible for peripheral vision. The corner of the eye usually encompasses an angle of approximately 40 to 60 degrees on each side of the center of gaze.
In everyday life, the corner of the eye plays a significant role in detecting peripheral objects, ensuring situational awareness, and identifying potential threats or dangers. This peripheral vision allows for the detection of motion, providing a level of safety and aiding in navigation. For instance, while driving, pedestrians or vehicles entering from the side can be spotted using peripheral vision before focusing directly on them.
Moreover, the phrase "corner of the eye" is also used metaphorically to describe a fleeting or vague perception of something, often implying a subtle or subconscious awareness of a person or object. It suggests noticing something indirectly or subconsciously, without actively paying attention or acknowledging its presence.
