Retinal Rod Photoreceptor CellsPhotoreceptor CellsRod Cell Outer SegmentRhodopsinTransducinPhotoreceptor Cells, VertebrateRetinal Cone Photoreceptor CellsRetinaEye ProteinsRetinal DegenerationRod OpsinsLightPhotoreceptor Cells, InvertebrateArrestinG-Protein-Coupled Receptor Kinase 13',5'-Cyclic-GMP PhosphodiesterasesCattleVision, OcularElectroretinographyRetinal PigmentsCyclic Nucleotide Phosphodiesterases, Type 6Dark AdaptationAmbystomaRecoverinRetinitis PigmentosaLight Signal TransductionBufo marinusCyclic GMPRetinal Bipolar CellsDarknessCyclic Nucleotide-Gated Cation Channels