PupilPupil DisordersTonic PupilReflex, PupillaryMydriaticsTropicamideVasodilationArteriolesDilatation, PathologicMydriasisDilatationIrisMiosisAnisocoriaPia MaterBrachial ArteryAccommodation, OcularCyclopentolateEndothelium, VascularAdie SyndromeVasodilator AgentsRefraction, OcularAberrometrySchoolsEye ColorCatheterizationRefractive ErrorsCorneal TopographyLightNitric OxideNitroglycerinCoronary VesselsHyperemiaLabor Stage, FirstVisual AcuityAcetylcholineRegional Blood FlowEsophageal AchalasiaNitroprussideStudentsOptics and PhotonicsMicrocirculationGlarePresbyopiaBlood Flow VelocityNitroarginineFacultyAstigmatismBiological Factors