Which part contains the muscles that adjust lens shape for focusing?

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Multiple Choice

Which part contains the muscles that adjust lens shape for focusing?

Accommodation—the eye’s ability to change lens shape for focusing—depends on the ciliary muscle housed in the ciliary body. When you focus on something near, the ciliary muscle contracts, releasing tension on the suspensory ligaments (zonules) attached to the lens, allowing the lens to become more curved and increase its refractive power. For distant objects, the muscle relaxes, the zonules pull tighter, and the lens flattens to reduce its power. The retina is where the image is formed, the iris adjusts pupil size to control light, and the lens is the focusing element itself, but the muscles that change its shape are in the ciliary body.

Accommodation—the eye’s ability to change lens shape for focusing—depends on the ciliary muscle housed in the ciliary body. When you focus on something near, the ciliary muscle contracts, releasing tension on the suspensory ligaments (zonules) attached to the lens, allowing the lens to become more curved and increase its refractive power. For distant objects, the muscle relaxes, the zonules pull tighter, and the lens flattens to reduce its power. The retina is where the image is formed, the iris adjusts pupil size to control light, and the lens is the focusing element itself, but the muscles that change its shape are in the ciliary body.

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