Which muscle is contracted as pa of the pupillary light reflex?
In a normal individual, shining a light in either eye will result in both pupils constricting due to contraction of the pupillary sphincter muscles. In contrast, the pupillary dilator muscle dilates the pupil. The ciliary muscle is involved in focusing the eye (accommodation).
Ciliary muscle
Pupillary dilator muscle
Pupillary sphincter muscle
Radial fibers of the iris
Special Senses