نتایج جستجو برای: autorefraction
تعداد نتایج: 253 فیلتر نتایج به سال:
AIM The purpose of the study was to evaluate the comparison of manual refraction versus autorefraction in diabetic retinopathy patients. MATERIAL AND METHODS The study was conducted at the Be'sat Army Hospital from 2013-2015. In the present study differences between two common refractometry methods (manual refractometry and Auto refractometry) in diagnosis and follow up of retinopathy in pati...
Abstract Purpose While there are numerous studies comparing open-view autorefractors to subjective refraction or other autorefractors, most between closed and autorefraction tend focus on children rather than young adults. The aim of this study was determine the concordance in non-cycloplegic refractive error two modern objective autorefractors: closed-view monocular Topcon TRK-2P binocular Gra...
BACKGROUND Photoscreening and remote autorefraction showed promise in the urban "Vision in PreSchoolers Study." We transported a comparative screening with confirmation program to a remote part of interior Alaska. METHODS Eighty children from villages in the Koyukon region received onsite three-pronged vision screening followed by gold-standard confirmatory exams. Each had patched HOTV acuity...
PURPOSE To investigate monthly and seasonal variations in the progression of myopia in children enrolled in the Correction of Myopia Evaluation Trial (COMET). METHODS An ethnically diverse cohort of 469 myopic 6- to <12 year-old children was randomized to single vision or progressive addition lenses and followed for 3 years with 98.5% retention. Progression of myopia was measured semiannually...
PURPOSE To compare the agreement between subjective refraction and autorefraction using two commercially available autorefractors. METHODS Prospective data were collected for 190 subjects using either the Nidek ARK-700A (Fremont, CA) or the Topcon KR-8000 (Paramus, NJ) and subjective refraction (masked to autorefraction). Refractions were compared in terms of spherical equivalent using Bland-...
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