What does the term "accommodation" refer to in vision?

The term "accommodation" in vision specifically refers to the adjustment of the eye for focusing at different distances. This process involves the lens of the eye changing its shape to ensure that images are clear, whether they are near or far away. The ciliary muscles control this adjustment by contracting or relaxing, allowing the lens to become more curved for near objects and flatter for distant objects. This ability is crucial for clear vision across a range of distances, enabling us to see both nearby text and distant landscapes clearly.

The other options describe different aspects of vision: distinguishing colors relates to the functionality of the cone cells in the retina; coordination of eye movements involves muscle control and alignment to ensure both eyes are working together properly; and the perception of depth stems from binocular vision and the brain's interpretation of images from both eyes. Each of these processes is important for overall visual capability, but they do not specifically define "accommodation."