title: Visual excitation.
mesh_terms: D000255:Adenosine Triphosphate / Q000494:pharmacology; D004594:Electrophysiology; D006801:Humans; D010777:Photochemistry; D012160:Retina / Q000166:cytology; D012168:Retinal Pigments / Q000378:metabolism / Q000502:physiology*; D014785:Vision, Ocular
chemical_list: D012168:Retinal Pigments; D000255:Adenosine Triphosphate