title: Motor skills of children with unilateral visual impairment in the Infant Aphakia Treatment Study.
abstract: OBJECTIVE
  To assess motor functioning in children aged 4 years 6 months enrolled in the Infant Aphakia Treatment Study, and to determine contributions of visual acuity and stereopsis to measured motor skills.
  
  
  METHODS
  One hundred and four children (53% female) with unilateral aphakia randomized to intraocular lens or contact lens treatment were evaluated at 4 years 6 months (age range 4y 6mo-4y 11mo) for monocular recognition visual acuity, motor skills, and stereopsis by a traveling examiner masked to treatment condition. Motor skills were assessed with the Movement Assessment Battery for Children--Second Edition (MABC-2). Visual acuity was operationalized as log10 of the minimum angle of resolution (logMAR) value for treated eye, best logMAR value for either eye, and intraocular logMAR difference.
  
  
  RESULTS
  Student's t-tests showed no significant differences in MABC-2 scores between the intraocular lens and contact lens groups. The mean total score was low (6.43; 18th centile) compared with the normative reference group. Motor functioning was not related to visual acuity in the treated eye or to intraocular logMAR difference, but was predicted in a regression model by the better visual acuity of either eye (usually the fellow eye), even after accounting for the influence of age at surgery, examiner, orthotropic ocular alignment, and stereopsis.
  
  
  CONCLUSIONS
  Children with unilateral congenital cataract may have delayed motor functioning at 4 years 6 months, which may adversely affect their social and academic functioning.
authors.affiliation: Emory University School of Medicine, Atlanta, GA, USA.
authors.forename: Marianne
authors.initials: M
authors.lastname: Celano
authors.affiliation: Department of Vision Sciences, University of Alabama, Birmingham, AL, USA.
authors.forename: E Eugenie
authors.initials: EE
authors.lastname: Hartmann
authors.affiliation: Emory University School of Medicine, Atlanta, GA, USA.
authors.forename: Lindreth G
authors.initials: LG
authors.lastname: DuBois
authors.affiliation: Rollins School of Public Health, Emory University, Atlanta, GA, USA.
authors.forename: Carolyn
authors.initials: C
authors.lastname: Drews-Botsch
mesh_terms: D001035:Aphakia / Q000150:complications / Q000151:congenital / Q000503:physiopathology*; D002657:Child Development / Q000502:physiology*; D002675:Child, Preschool; D003867:Depth Perception / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D009048:Motor Skills / Q000502:physiology*; D014786:Vision Disorders / Q000209:etiology / Q000503:physiopathology*; D015349:Vision, Monocular / Q000502:physiology; D014792:Visual Acuity / Q000502:physiology*