title: Modern instruments for subjective refraction. A comparative study.
abstract: In a comparative study, subjective refractions were carried out on 115 normal subjects and 118 patients with four instruments (Humphrey Vision Analyzer, Möller/CooperVision Visutron, Reichert SR-IV, Rodenstock/Coburn Phoromat). The accuracy of the prescriptions obtained, the visual acuity results and the measurement time required were analyzed. The highest accuracy was obtained with the remote-controlled phoropters Phoromat and Visutron. The fastest instrument was the SR-IV.
mesh_terms: D002386:Cataract / Q000503:physiopathology; D006801:Humans; D008433:Mathematics; D009885:Ophthalmology / Q000295:instrumentation*; D012016:Reference Values; D012029:Refraction, Ocular; D013997:Time Factors; D014792:Visual Acuity