Saccadic eye movement refers to the rapid, jerky movements of the eyes as they shift focus from one point to another. These movements are essential for visual perception, allowing the brain to quickly gather information from different parts of the visual field. Saccades occur automatically and can be triggered by visual stimuli or voluntary decisions to look at something specific. During a saccade, the eyes can move at speeds of up to 900 degrees per second. This process is crucial for activities such as reading, where the eyes jump from word to word, and for tracking moving objects. Understanding saccadic eye movement is important in fields like neurology and optometry.