title: Three-way comparison of retinoscopy, subjective, and Dioptron Nova refractive findings.
abstract: On the basis of routine clinical findings taken on a group of 100 patients serving as subjects in the Houston Myopia Control study, a three-way comparison was made between retinoscopy, subjective, and Dioptron Nova refractive findings. Retinoscopy and subjective findings compared very favorably, mean differences being -0.01 D for spherical equivalent power and -0.05 D for cylinder power. Dioptron and retinoscopy findings differed by -0.30 D for spherical equivalent power and -0.13 D for cylinder power, whereas Dioptron and subjective findings differed by -0.33 D for spherical equivalent power and -0.18 D for cylinder power.
mesh_terms: D000293:Adolescent; D002648:Child; D005069:Evaluation Studies as Topic; D006801:Humans; D009216:Myopia / Q000175:diagnosis; D009887:Ophthalmoscopy; D009907:Optometry / Q000295:instrumentation*; D012029:Refraction, Ocular