Color PerceptionColorColor Perception TestsColor VisionLightingAdaptation, OcularRetinal Cone Photoreceptor CellsContrast SensitivityPhotic StimulationPsychophysicsSensory ThresholdsAdaptation, PhysiologicalUltrasonography, Doppler, ColorColor Vision DefectsHair ColorEye ColorPigmentationEchocardiography, Doppler, ColorColorimetryProsthesis ColoringSkin PigmentationTime FactorsRaynaud Disease