Accommodation refers to which ability of the eye?

Accommodation specifically refers to the eye's ability to adjust its focus to see objects clearly at varying distances. This process involves the lens of the eye changing its shape, controlled by the ciliary muscles, to increase or decrease its curvature. When viewing distant objects, the lens flattens to allow for a clearer focus, whereas when looking at objects up close, the lens becomes thicker to enhance focus.

This ability is crucial for tasks such as reading or using digital screens, where objects are often held at different distances. While perceiving color, detecting motion, and perceiving depth involve different functions of the visual system, they do not pertain to the eye's accommodation mechanism. Thus, the correct understanding of accommodation highlights its role in enabling clear vision across varying distances.