Reliability of visual acuity measures of amblyopic eyes.
Reliability of visual acuity measures of amblyopic eyes.
复制标题
弱视眼视力测量的可靠性。
DOI：
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发表时间：
1977
期刊：
影响因子：
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通讯作者：
Eskridge Jb
中科院分区：
文献类型：
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作者：
Davis Dw;Eskridge Jb
使用 Snellen 视力表（全图和单线）每周测量 10 名弱视患者的视力，持续 6 周，新开发的 E 视力表专门用于测试弱视患者的视力。对于每次试验的每次测试，受试者的敏锐度反应都以图形方式绘制出来，并通过最小二乘直线拟合到最中心的数据。比较 3 次视力测试的 50% 阈值视力的可靠性（可重复性）。新的 E 图最可靠，Snellen 单线检验最不可靠。这些结果对于量化弱视治疗期间和治疗后的视力改善存在并发症。拟合的敏锐度线的斜率对于评估治疗的预后可能有价值。
Ten amblyopes had their visual acuity measured once a week for 6 weeks using a Snellen chart (whole chart and single line) and a newly developed E chart was designed specifically for testing the acuity of amblyopes. For each test at each trial, the subject's acuity responses were graphically plotted and were fitted by a least-squares straight line to the central-most data. The reliability (repeatability) of the 50% threshold acuity was compared for the 3 acuity tests. The new E chart was the most reliable and the Snellen single-line test was the least reliable. These results have complications for quantifying acuity improvement during and following amblyopia therapy. The slope of the fitted acuity line may have value in assessing the prognosis for treatment.