title: Interocular transfer of the movement aftereffect in central and peripheral vision of people with strabismus.
abstract: OBJECTIVE
  To compare binocularity in central and peripheral vision of people with early-onset strabismus and people with normal binocular vision.
  
  
  METHODS
  Ten subjects with early-onset strabismus, and nine subjects with normal binocular vision were tested. To assess binocularity, interocular transfer (IOT) of a rotary movement aftereffect (MAE) was measured. The MAE stimuli were either confined to the central 2.8 degrees of the visual field or were presented 10 degrees into peripheral vision.
  
  
  RESULTS
  In peripheral vision, there was no significant difference in IOT for the two groups of subjects. In central vision, there was a significant decrease of IOT in subjects with early-onset strabismus. Their IOT was, however, significantly greater than zero.
  
  
  CONCLUSIONS
  Early-onset strabismus appears to spare binocularity in peripheral vision but reduces it in central vision. It does not abolish binocularity assessed by IOT of MAE, suggesting that some binocular connections survive early-onset strabismus, even in central vision.
authors.affiliation: Department of Psychology, University of Otago, Dunedin, New Zealand.
authors.forename: R P
authors.initials: RP
authors.lastname: O'Shea
authors.forename: A A
authors.initials: AA
authors.lastname: McDonald
authors.forename: A
authors.initials: A
authors.lastname: Cumming
authors.forename: D
authors.initials: D
authors.lastname: Peart
authors.forename: G
authors.initials: G
authors.lastname: Sanderson
authors.forename: A C
authors.initials: AC
authors.lastname: Molteno
mesh_terms: D000293:Adolescent; D000328:Adult; D000360:Afterimage / Q000502:physiology*; D005260:Female; D006801:Humans; D008027:Light; D008297:Male; D009039:Motion Perception / Q000502:physiology*; D009068:Movement; D012160:Retina / Q000502:physiology; D013285:Strabismus / Q000503:physiopathology*; D015348:Vision, Binocular / Q000502:physiology*