Matches in DBpedia 2016-04 for { ?s ?p "Vision span or perceptual span is a controversial concept in speed reading referring to the angular span (vertically and horizontally), within which the human eye has sharp enough vision to read text. The visual field of the human eye spans approximately 120 degrees of arc. However, most of that arc is peripheral vision. The human eye has much greater resolution in the macula, where there is a higher density of cone cells."@en }
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- Vision_span comment "Vision span or perceptual span is a controversial concept in speed reading referring to the angular span (vertically and horizontally), within which the human eye has sharp enough vision to read text. The visual field of the human eye spans approximately 120 degrees of arc. However, most of that arc is peripheral vision. The human eye has much greater resolution in the macula, where there is a higher density of cone cells.".
- Q7936205 comment "Vision span or perceptual span is a controversial concept in speed reading referring to the angular span (vertically and horizontally), within which the human eye has sharp enough vision to read text. The visual field of the human eye spans approximately 120 degrees of arc. However, most of that arc is peripheral vision. The human eye has much greater resolution in the macula, where there is a higher density of cone cells.".