The relationship among handedness, sighting dominance, and acuity dominance in elementary school children

The present study was an attempt to clarify the relationship between handedness, sighting dominance, and eye-acuity in children. Ninety-four males and ninety-seven females between the ages of five and eleven were assessed on standardized measures of handedness, sighting dominance, and visual acuity. Right-handers were more likely to show right-sighting dominance, whereas left-handers had an equal chance of being right-sighted or left-sighted. Acuity dominance was not consistently associated with handedness or sighting dominance. No effects for sex or age were found. It is suggested that further clarification of the function of various lateralized sensorimotor measures is needed before an understanding of how these measures may be related to cortical dominance is possible.