JAMB - Physics (1993 - No. 22)
The property of the eye known as its power of accommodation is controlled by the
pupil
virteous humour
iris
ciliary muscles
Paskaidrojums
The ciliary body produces the fluid in the eye called aqueous humor.
It also contains the ciliary muscle, which changes the shape of the lens when your eyes focus on a near object.
This process is called accommodation.