the muscles that move the eyeballs are known as the superior,
medial, lateral and inferior rectii muscles, together with inferior
oblique and superior oblique they rotate the eyeballs up, down,
left, right and round...
the muscles that control pupillary dilatation and constriction are
the ciliary muscles that are located in the second layer of the
eyeballs...
first layer - innermost layer - retina, choroid
second layer - middle layer - iris, ciliary muscles and
bodies...
third layer - outer most layer - cornea, sclera
