ciliary body
US /ˈsɪl.i.er.i ˌbɑːd.i/
UK /ˈsɪl.i.er.i ˌbɑːd.i/

1.
a part of the eye that includes the ciliary muscle, which controls the shape of the lens, and the ciliary epithelium, which produces the aqueous humor
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The ciliary body plays a crucial role in accommodation, allowing the eye to focus on objects at various distances.
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Damage to the ciliary body can affect both vision and intraocular pressure.