title: Loss of visual acuity due to eye injuries among 6292 school children in the Sultanate of Oman.
abstract: OBJECTIVE
  In 1992-94 a nation-wide survey in primary schools in the Sultanate of Oman for ocular disorders was conducted. This report focuses on the prevalence of visual acuity loss after injury.
  
  
  METHODS
  A random selection of 6,292 children from Grades 1 and 6 from all primary schools in the country provided the research sample. Children who failed the visual acuity screening test received a complete "on the spot" eye examination by the pediatric ophthalmologist.
  
  
  RESULTS
  12 children were found to have monocular low vision (VA <0.3 to amaurosis) caused by injury. Total prevalence for loss of vision in one eye was 0.19%, with 0.15% in 6-year-olds and 0.25% in 12-year-olds Traumatic cataracts were noted in 4 children, 3 of these were in need of surgery. One child had aphakia after trauma surgery and needed a secondary lens implant.
  
  
  CONCLUSIONS
  Altogether the prevalence of traumatic monocular visual damage in our study was 0.19%. Next to amblyopia, injury is the main reason for monocular loss of vision in childhood, however, both are preventable. Information about trauma prevention and the need for adequate ophthalmic care should be emphasized. Regular and repeated screening of visual acuity in children is essential.
authors.affiliation: Department of Ophthalmology, College of Medicine, Sultan Qaboos University, Sultanate of Oman. joanl@ebox.tninet.se
authors.forename: J
authors.initials: J
authors.lastname: Lithander
authors.forename: H
authors.initials: H
authors.lastname: Al Kindi
authors.forename: A M
authors.initials: AM
authors.lastname: Tönjum
mesh_terms: D017677:Age Distribution; D002648:Child; D005131:Eye Injuries / Q000150:complications* / Q000453:epidemiology / Q000517:prevention & control; D005260:Female; D006801:Humans; D008297:Male; D009850:Oman / Q000453:epidemiology; D015995:Prevalence; D012189:Retrospective Studies; D017678:Sex Distribution; D014786:Vision Disorders / Q000453:epidemiology / Q000209:etiology*; D014792:Visual Acuity