Adjustment of the lens by the ciliary body is accommodation.
The correct option is D.
The lens is stretched and its refractive strength is changed by the zonule, a collective term for the suspensory ligaments that the ciliary bodies anchor. Relaxation of the zonule allows for accommodation for nearby items.
A section of the central portion of the eye's wall. The ring-shaped muscle that modifies the curvature of the lens whenever the eye focuses is part of the ciliary body, which is located behind the iris. Additionally, it creates the transparent liquid that fills the area between the iris and the cornea.
There are muscles, blood vessels, and epithelium in the ciliary body.
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