title: Comparison of Lea Symbols chart and Sheridan Gardiner chart in assessing vision screening among pre-school children: a Malaysia perspective.
abstract: OBJECTIVE
  Compare the performance of Lea Symbols and Sheridan Gardiner charts against the standard test chart used to determine reduced VA during vision screening among pre-schoolers.
  
  
  METHODS
  Seven hundred seventy five pre-school participated where 389 subjects were boys and 386 subjects were girls were tested using the Lea Symbols chart and the Sheridan Gardiner chart. The mean age of the pre-school children was 5.3 +/- 0.7 years old.
  
  
  RESULTS
  The Lea Symbols chart showed a higher sensitivity (97.5%) compared to the Sheridan Gardiner chart (57.1%). While the Sheridan Gardiner chart showed higher specificity (92.0%) compared to the Lea Symbols chart (45.0%).
  
  
  CONCLUSIONS
  The Lea Symbols chart offers a better pick-up rate of visual impairment during a vision-screening program especially cases of amblyopia among pre-school children compared to the Sheridan Gardiner chart in Malaysia.
authors.affiliation: Optometry & Visual Science Program, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia. r_omar@fskb.ukm.my
authors.forename: Rokiah
authors.initials: R
authors.lastname: Omar
authors.forename: Duratul Ain
authors.initials: DA
authors.lastname: Hussin
authors.forename: Victor Feizal
authors.initials: VF
authors.lastname: Knight
mesh_terms: D000550:Amblyopia / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008296:Malaysia; D008297:Male; D014786:Vision Disorders / Q000175:diagnosis*; D015351:Vision Screening / Q000379:methods*