Optics and visual physiology.
D000221:Adaptation, Ocular; D000818:Animals; D002540:Cerebral Cortex / Q000502:physiology; D003118:Color Perception; D003117:Color Vision Defects; D003624:Darkness; D004585:Electrooculography; D004596:Electroretinography; D005128:Eye Diseases / Q000175:diagnosis; D005403:Fixation, Ocular; D008027:Light; D009900:Optic Nerve / Q000502:physiology; D010786:Photoreceptor Cells / Q000502:physiology; D011603:Psychophysiology; D012160:Retina / Q000502:physiology*; D012168:Retinal Pigments; D014793:Visual Cortex; D014796:Visual Perception
D012168:Retinal Pigments