What is the primary function of eye movements during visual tasks?

The primary function of eye movements during visual tasks is to assist in focusing gaze and acquiring information. Eye movements allow the visual system to direct attention to relevant parts of the visual field, enabling the brain to process information from different objects and areas effectively. By coordinating saccades (rapid movements of the eye) and fixations (periods when the eye is stationary), the eyes can bring different elements into focus, thus enhancing perception and understanding of the surrounding environment. This dynamic process is essential for tasks that require detailed observation, such as reading, tracking moving objects, or exploring a scene.

In this context, while minimizing distraction and adjusting to lighting conditions can influence visual perception, they are not the primary role of eye movements. Similarly, controlling the angle of vision is a result of eye movements but does not encompass the full scope of their function in information acquisition.