Some authors refer to the eye–hand span as the "perceptual span" for the visual information perceivable around the region of center of vision used in reading, and in some cases including peripheral input. The eye–hand span is analogous to the eye–voice span in reading language aloud and in singing.
Some authors call the eye–hand span a "perceptual span" for visual information within the field of vision used in reading, and sometimes including peripheral input. The eye–hand span is similar to the eye–voice span when engaging with written or sung text.