title: Lessons on dilation.
abstract: Mydriatics cause pupil dilation by blocking the responses to the sphincter muscle of the iris from cholinergic stimulation. Cycloplegics paralyze the action of the ciliary muscles thereby prohibiting accommodation of the lens.
authors.forename: J
authors.initials: J
authors.lastname: Fishbaugh
mesh_terms: D006801:Humans; D009184:Mydriatics / Q000494:pharmacology
chemical_list: D009184:Mydriatics