Flicker electroretinography in some cases of total colour-blindness.
D001766:Blindness; D003116:Color; D003118:Color Perception; D055253:Color Vision; D003117:Color Vision Defects; D004596:Electroretinography; D006801:Humans; D012160:Retina / Q000502:physiology*
COLOR VISION; RETINA/physiology