Volume 3, Number 8, Article 3, Pages 554-561 doi:10.1167/3.8.3 http://journalofvision.org/3/8/3/ ISSN 1534-7362
Binocular coordination of saccades at far and at near in children and in adults
Qing Yang
Laboratoire de Physiologie de la Perception et de l’Action CNRS-Collège de France, Paris, France
[home] [e-mail]
Zoi Kapoula
Laboratoire de Physiologie de la Perception et de l’Action CNRS-Collège de France, Paris, France
[home] [e-mail]
Abstract

The goal of the study was to test the quality of binocular coordination of saccades in children and adults, and its dependency upon the viewing distance. Fourteen normal children (4.5 – 12 years old) and 10 normal adults (22 – 44 years old) participated. Two distances were studied: far (150 cm) and close (20 cm). Horizontal saccades from both eyes were recorded simultaneously by a photoelectric device. The results show (i) poor binocular coordination of saccades in children is distance dependant: coordination is particularly poor at near and could compromise single binocular vision; and (ii) post-saccadic drift analysis indicates that stability of the eyes after the saccade as well as the quality of binocular alignment during fixation are poor in children, regardless of the viewing distance. The results provide a reference for the normal development of binocular motor control and have important implications for reading in young children.

View full-text

History
Received March 12, 2003; published October 2, 2003
Citation
Yang, Q., & Kapoula, Z. (2003). Binocular coordination of saccades at far and at near in children and in adults. Journal of Vision, 3(8):3, 554-561, http://journalofvision.org/3/8/3/, doi:10.1167/3.8.3.
Keywords
saccade, disconjugacy, post-saccadic drift, viewing distance, development
Downloads
>549 Total; >0.398 /day (DemandFactor)
 
Search
for related articles by these authors
for papers that cite this paper
Get citation






jov