Binocular visions means that both eyes are focused on the same object and move in a coordinated fashion. Anatomy of the Eye. The outer coat is the sclera. This is a strong white fibrous coat which maintains the shape of the eye, protects its internal structure, and serves as the attachment point for the eye muscles. The clear front portion of the eye is the cornea.
Light passes through the cornea and into the pupil behind it.
These bones strengthen the eyes and provide attachment for the ciliary muscles. The middle coat or layer of the eye is the vascular tunic. It is composed of the iris, the ciliary body and the choroid. The iris is a thin sheet of muscle fibers and connective tissue that forms a diaphragm in front of the lens, controlling the amount of light entering the eye. The pupil is the circular open space at the center of the iris.