Viewing distance affects reaction time to discriminate letters of a constant, small size.
D000065:Accommodation, Ocular; D000328:Adult; D004215:Distance Perception / Q000502:physiology*; D005260:Female; D005556:Form Perception / Q000502:physiology*; D006801:Humans; D008297:Male; D010364:Pattern Recognition, Visual / Q000502:physiology*; D011930:Reaction Time