％0期刊文章％schulze-bonsel，kilian％a feltgen，nicolas％a burau，hermann％a hansen，lutz％a bach，michael％t visuit accuities“手动运动”和“计数手指”，可以用弗里布尔格进行量化视力测试％b调查眼科和视觉科学％D 2006％R 10.1167/iovs.05-0981％J调查性眼科和视觉科学％v 47％n 3％n 3％P 1236-1240％@ 1552-5783％x目的。具有非常低视力的患者的视力（VA）使用半定量量表“计数手指”（CF），“手运动”（HM），“光感知”（LP）和“无光感知”进行分类。需要更多的定量措施，特别是对于临床研究。比较了临床VA测量结果，早期治疗糖尿病性视网膜病变研究（ETDRS）图表和Freiburg视力测试（FRACT）的结果。该分量是计算机视力测试，必要时可以显示非常大的Landolt C选择性。方法。检查的是100例​​各种眼科疾病（例如糖尿病性视网膜病，ARMD）的100只眼睛，覆盖了从LP到十进制为0.32的一系列VAS。分量型在具有随机方向的17英寸LCD监视器上呈现。经过广泛的训练，获得了两次ETDR和分数测量。 The testing distance was 50 or 100 cm. results. ETDRS and FrACT coincided closely for VA ≥ 0.02 (n = 80). ETDRS measures were successfully obtainable down to CF (at 30 cm; test–retest averaged over all patients, coefficient of variation [CV]ETDRS= 9% ± 8%), and FrACT provided reproducible measurements down to HM (test–retest CVFrACT=12% ± 11%). For CF (n = 6), both ETDRS and FrACT resulted in a mean VA of 0.014 ± 0.003 (range, 0.01–0.02). The VA results of FrACT for HM (n = 12) were 0.005 ± 0.002 (range, 0.003–0.009); the individual values were highly reproducible. No results were obtainable for LP (n = 2). conclusions. The three acuity procedures concur above a VA of 0.02. The results suggest that the category CF at 30 cm can be replaced by 0.014, using ETDRS or FrACT. Using FrACT, one can even reproducibly quantify VA in the HM-range, yielding a mean VA of 0.005. %[ 1/17/2022 %U https://doi.org/10.1167/iovs.05-0981

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