title: Accuracy of Plusoptix S04 in children and teens.
abstract: OBJECTIVE
  To compare refraction measurements of young patients obtained using Plusoptix S04 with those obtained using cycloplegic retinoscopy.
  
  
  METHODS
  Cohort study.
  
  
  METHODS
  Data were collected from 64 patients (128 eyes), aged 2-19 years.
  
  
  METHODS
  All eyes underwent photorefraction using Plusoptix S04 with or without cycloplegia and cycloplegic retinoscopy. Eyes with a maximum spherical and cylinder range of 7.00 to +5.00 were excluded from the study.
  
  
  RESULTS
  The difference in spherical equivalents between Plusoptix S04 without cycloplegia and cycloplegic retinoscopy was more than ±0.50 D in 70.2% of the eyes. In 100 eyes (78.1%), photorefraction underestimated the hyperopic refractive error. The cylinder powers determined by Plusoptix S04 and cycloplegic retinoscopy were similar. The difference in the spherical equivalents between Plusoptix S04 with cycloplegia and cycloplegic retinoscopy was ±0.50 D in 89.8% of the eyes. In 96 eyes (75%), photorefraction with cycloplegia overestimated the hyperopic refractive error. The difference in cylindrical power determined using Plusoptix S04 with cycloplegia and cycloplegic retinoscopy was statistically significant (paired t test, p <0.009).
  
  
  CONCLUSIONS
  The statistically significant difference in spherical equivalent values obtained using Plusoptix S04 with or without cycloplegia and cycloplegic retinoscopy suggests that Plusoptix S04 is more in evaluating the cylinder power and axis in young patients. Our results also suggest that Plusoptix S04 is not an accurate tool to estimate the refraction in children.
authors.affiliation: Department of Ophthalmology, Ege University Faculty of Medicine, İzmir, Turkey.
authors.forename: Yilmaz Kiyak
authors.initials: YK
authors.lastname: Ayse
authors.forename: Uretmen
authors.initials: U
authors.lastname: Onder
authors.forename: Kose
authors.initials: K
authors.lastname: Suheyla
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D015331:Cohort Studies; D005260:Female; D006801:Humans; D008297:Male; D012029:Refraction, Ocular / Q000502:physiology*; D012030:Refractive Errors / Q000175:diagnosis*; D015203:Reproducibility of Results; D042262:Retinoscopy; D015351:Vision Screening / Q000295:instrumentation*; D055815:Young Adult