The ciliary muscles in Joe's eyes must have reduce the curvature of the lens, resulting in an increase in focal length for the cornea-lens system in order to see the squirrel.
What is the function of the ciliary muscles of the eye?
The ciliary muscles of the eye is the eyes attaches the lens of the eye to the eye socket.
The relaxation and contraction of the ciliary muscles of the eye changes the shape ofthe lens.
When the ciliary muscles contracts, the lens become shorter and more thicker at the centre and can focus nearer objects.
When the ciliary muscles relaxes, the lens become longer and more thinner at the centre and can focus far objects.
Therefore, the ciliary muscles in Joe's eyes must have reduce the curvature of the lens, resulting in an increase in focal length for the cornea-lens system.
Learn more about ciliary muscles at: https://brainly.com/question/800335
