title: An analysis of retinal receptor orientation. IV. Center of the entrance pupil and the center of convergence of orientation and directional sensitivity.
mesh_terms: D003250:Constriction; D003315:Cornea / Q000502:physiology; D004106:Dilatation; D006801:Humans; D011680:Pupil / Q000502:physiology*; D012160:Retina / Q000502:physiology*; D011984:Sensory Receptor Cells / Q000502:physiology*