Role of PR-2000 auto-refractomer in pediatric refraction screening

Objective To investigate the accuracy and characteristics of PR-2000 autorefractor in pediatric refraction screening.Methods Measurements of refraction were performed on 520 eyes from 260 patients with refractive errors with the PR-2000 and retinoscopy respectively with or without cycloplegia,and then the data were compared.Results Highly positive correlations were seen between spherical powers yielded with PR-2000 autorefractor and retinoscopy without(r=0.922) or with(r=0.946) cycloplegia respectively,as well as the cylindrical power(r=0.888 without and r=0.890 with cycloplegia).The detection rate was higher in those tested by autorefractor than those obtained with retinoscopy in patients whose degree of astigmatism was lower than 0.75 D.Conclusions PR-2000 autorefractor was more accurate in the pediatric refraction screening.