Liebermann Laura, Leske David A, Hatt Sarah R, Holmes Jonathan M
Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota.
Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota.
J AAPOS. 2018 Apr;22(2):146-148.e1. doi: 10.1016/j.jaapos.2017.09.010. Epub 2018 Jan 6.
The double Maddox rod test is often used to measure cyclodeviations and to monitor change over time. The purpose of this study was to estimate test-retest reliability and the amount of cyclodeviation that would be considered real change using 95% limits of agreement. We retrospectively studied 86 clinically stable patients with double Maddox rod measurements 5-175 days apart (median, 69 days). The range of cyclodeviation at the first measurement was 6° incyclodeviation to 15° excyclodeviation. We calculated the half width of the 95% limits of agreement to be 4.7°, which means that a change of ≥5° in cyclodeviation would be considered a real change. The threshold of 5° should be used when assessing change between two measurements made with double Maddox rods.
双马多克斯杆试验常用于测量旋转斜视，并监测随时间的变化。本研究的目的是使用95%一致性界限来估计重测信度以及被视为真实变化的旋转斜视度数。我们回顾性研究了86例临床稳定的患者，他们在相隔5 - 175天（中位数为69天）进行了双马多克斯杆测量。首次测量时旋转斜视的范围为内旋斜视6°至外旋斜视15°。我们计算出95%一致性界限的半宽为4.7°，这意味着旋转斜视变化≥5°将被视为真实变化。在评估双马多克斯杆进行的两次测量之间的变化时，应使用5°的阈值。
