title: Comparison of American optical SR-IV refractive data with clinical refractive data on a group of myopic children.
abstract: Previous studies involving the American Optical SR-III Subjective Refraction System have indicated that refractive data for adults and for populations of mixed age groups compare favorably with conventional refractive data. However, no data concerning children, as a group, have been available. As a part of a 3-year Myopia Control Study being conducted at the University of Houston, 131 myopes between the ages of 6 and 15 years have been refracted by means of both the redesigned SR-IV Programmed Subjective Refractor and conventional clinical procedures. The results indicated that for the majority of subjects, the refractive data obtained by means of the SR-IV differed by no more than 0.25 D from data obtained by conventional procedures. SR-IV and clinical refractive data were also compared for a group of 30 second year optometry students, and agreement for the two methods was found to compare favorably with agreement of clinical refractive data obtained by two or more examiners.
mesh_terms: D002648:Child; D006801:Humans; D009216:Myopia / Q000175:diagnosis*; D009907:Optometry / Q000295:instrumentation* / Q000379:methods; D012029:Refraction, Ocular