title: Microstrabismus in monozygotic twins.
abstract: OBJECTIVE
  To report microesotropia in twins as a unique example of the role of heredity in primary microstrabismus.
  
  
  METHODS
  Clinical records of the examinations of monozygotic twins with primary microstrabismus were reviewed.
  
  
  RESULTS
  Microstrabismus with different clinical findings was present in monozygotic twins. The family history and personal history of the patients were not significant.
  
  
  CONCLUSIONS
  Microstrabismus can be seen as primary ocular motility problem without previous infantile esotropia or anisometropia. Genetic factors as well as intrauterine environment and developmental factors may affect sensorimotor development of the infant and cause ocular motility problems. Both twins should be examined for ocular motility disorders even in the absence of complaints.
authors.affiliation: Department of Ophthalmology, Ankara University School of medicine, Ankara, Turkey. satilla@bir.net.tr
authors.forename: H
authors.initials: H
authors.lastname: Atilla
authors.forename: N
authors.initials: N
authors.lastname: Erkam
mesh_terms: D002648:Child; D004200:Diseases in Twins; D004948:Esotropia / Q000235:genetics* / Q000628:therapy; D015785:Eye Diseases, Hereditary / Q000235:genetics* / Q000628:therapy; D005139:Eyeglasses; D005260:Female; D006801:Humans; D014430:Twins, Monozygotic / Q000235:genetics*; D015348:Vision, Binocular; D014792:Visual Acuity