Question

When the ciliary muscle of the eye contracts the effect is?

Answer 1

the effect is known as electrical neuron.

Answer 2

When the ciliary muscle is relaxed, the choroid acts like a spring pulling on the lens via the zonule fibers causing the lens to become flat. When the ciliary muscle contracts, it stretches the choroid, releasing the tension on the lens and the lens becomes thicker

hope this helps

^-^