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.