Once the operated eye has healed, a small opening is made in the mucous membrane covering the clear lens and light can then enter through the lens into the eye. These operations are rare. Iris and Ciliary body Iris is the colored ring in the front part of the eye. It is a thin layer of fine muscles. In its center is a hole, the pupil .
Light passes through the pupil into the eye.
The ciliary body is located just behind the iris. The lens is attached to the ciliary body by very thin thread-like structures. The surface of the ciliary body secretes clear fluid that circulates through the pupil into the anterior chamber and out of the anterior chamber via chamber angle. Lens The lens of the eye is a small, clear disc. It is very dry.