title: Pediatric photoscreeners in high risk patients 2012: a comparison study of Plusoptix, Iscreen and SPOT.
abstract: BACKGROUND
  New photoscreening models promise to detect amblyopia risk factors early in hopes of reducing permanent pediatric monocular and binocular vision impairment. The 3 commercially available interpreted photoscreeners had not yet been compared.
  
  
  METHODS
  This is a prospective, observational screening study following AAPOS guidelines on pediatric patients with and without developmental delays. 270 patients in a pediatric eye practice aged 4.7 +/- 4 years with 7% special needs. From December 2011 through March 2012, the Plusoptix, the iScreen, and the Pediavision SPOT were applied before confirmatory exam in a clinical pediatric eye practice.
  
  
  RESULTS
  The inconclusive rate ranged from 1-4% (iScreen) to 12% (Plusoptix). Sensitivity ranged from 72% (iScreen) to 84% (Plusoptix) and specificity ranged from 68% (SPOT) to 94% (Plusoptix). The iScreen can provide results in 99% of high risk patients.
  
  
  CONCLUSIONS
  In this cohort with high pre-screening prevalence, the 2011 photoscreeners had favorable validation that is expected to improve with further clinical study. Pediatricians have practical technology with a recognized procedure code to assist in amblyopia reduction.
authors.forename: Robert W
authors.initials: RW
authors.lastname: Arnold
authors.forename: Andrew W
authors.initials: AW
authors.lastname: Arnold
authors.forename: M Diane
authors.initials: MD
authors.lastname: Armitage
authors.forename: Janet M
authors.initials: JM
authors.lastname: Shen
authors.forename: Tom E
authors.initials: TE
authors.lastname: Hepler
authors.forename: Thad L
authors.initials: TL
authors.lastname: Woodard
mesh_terms: D000550:Amblyopia / Q000175:diagnosis; D002648:Child; D006801:Humans; D007223:Infant; D011446:Prospective Studies; D012030:Refractive Errors / Q000175:diagnosis; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D015351:Vision Screening