Invariance of visual receptive-field size and visual acuity with viewing distance.
D000065:Accommodation, Ocular; D000328:Adult; D005133:Eye Movements; D005403:Fixation, Ocular; D006801:Humans; D007834:Lasers; D008722:Methods; D010470:Perceptual Masking; D010775:Photic Stimulation; D012858:Size Perception; D014792:Visual Acuity; D014793:Visual Cortex / Q000502:physiology*; D014794:Visual Fields