Forces determining pupil size.
D004548:Elasticity; D006801:Humans; D006873:Hydroquinones / Q000494:pharmacology; D007498:Iris / Q000187:drug effects; D008027:Light; D009132:Muscles / Q000187:drug effects; D010656:Phenylephrine / Q000494:pharmacology; D010862:Pilocarpine / Q000494:pharmacology; D011680:Pupil / Q000187:drug effects / Q000502:physiology*; D012025:Reflex, Pupillary; D013565:Sympatholytics / Q000494:pharmacology
D006873:Hydroquinones; D013565:Sympatholytics; D010862:Pilocarpine; D010656:Phenylephrine