LightPhotosynthesisDarknessPhotobiologyChlorophyllPhotobioreactorsPhotoreceptor CellsPhotosynthetic Reaction Center Complex ProteinsPhotosystem II Protein ComplexAdaptation, OcularLight-Harvesting Protein ComplexesLightingCyanobacteriaBacteriochlorophyllsThylakoidsSolar EnergyDark AdaptationChloroplastsCircadian RhythmPhotoperiodLight Signal TransductionPlant LeavesReflex, PupillaryPhotic StimulationVision, OcularCuring Lights, DentalPhotochemistryPlastoquinoneColorRhodospirillumScattering, RadiationRetinal Rod Photoreceptor CellsElectron TransportTime FactorsChlorophytaTiliaMicroalgaePhotochemical ProcessesRhodobacter sphaeroidesPigments, BiologicalSynechocystisXanthophyllsAcclimatizationDibromothymoquinoneCompound Eye, ArthropodPhotosystem I Protein ComplexPhotophobiaCarotenoidsCryptophytaDiuronEcological Systems, ClosedPhotoreceptor Cells, InvertebrateRetinaDose-Response Relationship, RadiationFluorescencePhotometryPhycomycesPupilLight-Curing of Dental AdhesivesRetinal PigmentsLasersRhodopseudomonasChlorobiumAdaptation, PhysiologicalOcular Physiological PhenomenaTemperatureSolidagoPhototropismHardnessHalogensOptics and PhotonicsOxygenAnabaena variabilisArabidopsisChlamydomonas reinhardtiiKineticsChenopodiumMalvaceaeChloroplast Proton-Translocating ATPasesComposite ResinsRetinal Bipolar CellsBiomassRetinal Cone Photoreceptor CellsCarbon DioxideModels, BiologicalRhodopsinPlant ProteinsCylindrospermopsisRhodospirillalesEyeElectroretinographyAnthozoaMyosin Light ChainsPharmacognosyHistologyChlorobiScenedesmusLuminescencePhycobiliproteinsSpectrophotometry