DarknessLightCircadian RhythmDark AdaptationPhotoperiodPhotoreceptor CellsChronobiology DisordersPineal GlandLightingSuprachiasmatic NucleusAdaptation, OcularReflex, Vestibulo-OcularCavesMelatoninPerchesBiological ClocksPhotic StimulationPhytochromeRetinaPeriod Circadian ProteinsNystagmus, PhysiologicTerm BirthChlorophyllVision, OcularDiuronRetinal Rod Photoreceptor CellsEye MovementsVestibule, LabyrinthHypocotylTime FactorsRotationActivity CyclesCryptochromesRetinal Cone Photoreceptor CellsArabidopsisPhotosynthesisOcular Physiological PhenomenaReflex, PupillaryPlant LeavesCircadian ClocksPhotophobiaHead MovementsGene Expression Regulation, PlantArabidopsis ProteinsPhytochrome APupilEcotypeUrodelaOrientationAdaptation, PhysiologicalPeriodicityRod Cell Outer SegmentHypocreaCharacidaeAmbystomaSeedlingPhotobiologyPerciformesLight Signal TransductionMotor ActivityARNTL Transcription FactorsOtolithic MembraneArylalkylamine N-AcetyltransferaseGravity SensingBufo marinusCLOCK ProteinsPlant ProteinsGravitationPhytochrome BAccelerationGerminationRetinal PigmentsRhodopsinNystagmus, PathologicTupaiaSaccadesPlants, Genetically ModifiedPhotoreceptor Cells, VertebrateMoonAntarctic RegionsChloroplastsPhotoreceptor Cells, InvertebratePhotosynthetic Reaction Center Complex ProteinsFixation, OcularDistance PerceptionArctic RegionsElectroretinographyMutationGenes, PlantColorGoldfishCyanobacteriaMethylphenazonium MethosulfateBehavior, AnimalSpace PerceptionOctodonPlantsElectrooculographyPhotosystem II Protein ComplexPhototropins