Directional sensitivity of the foveal and parafoveal retina.
D005403:Fixation, Ocular; D006801:Humans; D008266:Macula Lutea / Q000502:physiology*; D009949:Orientation; D010775:Photic Stimulation; D010786:Photoreceptor Cells / Q000502:physiology*; D011680:Pupil; D012160:Retina / Q000033:anatomy & histology / Q000502:physiology*; D014792:Visual Acuity