the effect of parasympathetic stimulation on the pupil of the eye is
Sympathetic and Parasympathetic Effects. Effects on various systems and organs: Eye: dilation of pupil; focusing for distance vision. constriction of pupil; focusing for near vision. Skin: Sweat glands: (S) â increases secretion. (P) â none (not innervated) Arrector pili muscles: (S) â contraction and erection of hairs.