Our ability to change the focus of our eyes to see objects at different distances depends on changes in the

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The ability to change the focus of our eyes to see objects at different distances depends on changes in the thickness of the lens, which is also known as accommodation. The lens changes shape in response to signals from the ciliary muscles, allowing us to focus on objects that are both near and far. Changes in the position of the retina, frequency of impulses in the optic nerve, or width of the pupil do not directly affect our ability to change focus.

Our Ability to Change the Focus of Our Eyes to See