"Eye accommodation is the eye's ability to automatically adjust its focus to maintain a clear image as the distance to an object changes. This process involves

"Eye accommodation is the eye's ability to automatically adjust its focus to maintain a clear image as the distance to an object changes. This process involves changes in the shape of the lens, the constriction of the pupil, and the convergence of the eyes. It's a reflex action that allows us to see objects clearly both near and far" (Google)