Reply to: Accuracy and reproducibility of the ETDRS visual acuity chart: methodological issues
نویسندگان
چکیده
منابع مشابه
A modified ETDRS visual acuity chart for European-wide use.
PURPOSE The log MAR visual acuity (VA) chart developed for use in the Early Treatment Diabetic Retinopathy Study (ETDRS) is composed of 10 Sloan letters, which are not used in the Greek, Cyrillic, and Central European alphabets. In this study we evaluate a modified ETDRS chart, the University of Crete (UoC) chart, which contains a set of letters readable by all European citizens. METHODS In t...
متن کاملChart for visual acuity screening.
SIR, -I read with great interest the paper by Wong and Kaye on a suggested chart for visual acuity screening.' However, I was surprised to find that they recommended widespread clinical use of this chart without any clinical data to confirm its suitability. The statistical argument they use is compelling, but surely a comparison with other methods of acuity testing should be undertaken to confi...
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Correspondence/Findings To assess accuracy and precision of the positron emission tomography-computed tomography (PET-CT) carotid standardized uptake values (SUV) of 18F– fluorodeoxyglucose (18FDG) as an inflammatory biomarker for determining cerebrovascular diseases such as stroke, methodology and statistical issues should be taken into account. Otherwise, misleading messages will be the main ...
متن کاملcomparison of an italian chart with an iranian chart in visual acuity measurement
background: taking visual acuity is an important part of an eye routine examination. this study was conducted to compare visual acuity measured using an iranian digital tumbling e chart with visual acuity measured using an italian digital tumbling e chart as a familiar foreign chart. materials and methods: this study was carried out on 200 participants (400 eyes; healthy n=40, glaucoma n=40, re...
متن کاملLETTER TO THE EDITORS A CHART DEMONSTRATING VARIXTiONS IN ACUITY WITH RETINAL POSITION Visual acuity
Visual acuity is d&ned as the reciprocal of the visual angle, in minutes. subtended by a just resolvable stimulus. This critical dimension can be the gap in a Landolt C, the spatiat period of a grating or the offset of a vernier. etc. Acuity declines progressively from the fovea out to the periphery of the retina. It is down to half its maximum value at an eccentricity of only 30 min according ...
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ژورنال
عنوان ژورنال: Graefe's Archive for Clinical and Experimental Ophthalmology
سال: 2016
ISSN: 0721-832X,1435-702X
DOI: 10.1007/s00417-016-3421-z