Dark AdaptationRetinaAdaptation, OcularPhotoreceptor CellsAdaptation, PhysiologicalElectroretinographyRetinal Rod Photoreceptor CellsDarknessLightNight BlindnessPhycomycesRhodopsinRetinal PigmentsNight VisionVision, OcularRetinal Cone Photoreceptor CellsSensory ThresholdsPhotoreceptor Cells, VertebratePhotic StimulationRetinaldehydeRetinal DegenerationVitamin A DeficiencyVitamin AChlorofluorocarbons, MethaneCathode Ray TubeFlicker FusionOcular Physiological PhenomenaAdaptation, BiologicalRetinoidsRod OpsinsFundus OculiRetinitis PigmentosaUrodelaOpsinsRetinal DiseasesLight Signal TransductionColor Vision DefectsPigment Epithelium of EyeColor PerceptionAmbystomaEtherDigestive System DiseasesEye Proteinscis-trans-IsomerasesPsychophysiologyMacular DegenerationColor Perception TestsTime FactorsFovea CentralisVisual AcuityPupilRetinal Ganglion CellsBacteriorhodopsinsBruch MembranePhotometryContrast SensitivityNepalElectrooculographyKineticsVisual FieldsVisual PerceptionRetinal VesselsCatsVision DisordersFungiPhotochemistryVisual Field TestsAmacrine CellsElectrophysiologyMutationMice, Inbred C57BLAction PotentialsAging