Pradines F, Delbosc B, Royer J
J Fr Ophtalmol. 1985;8(8-9):541-8.
The difference tables gives, on a numeric table, the difference between first and second examination. The confidence interval is given out by a statistical test (T-test) which can be applied to the following parts of visual field: pathological area, whole field. We present a number of visual field examinations (Program 33) from glaucomatous patients, analysed through "change mode". We can make the following remarks: When we assess an improvement, it is underlined in "Delta Program", which indicates: significant improvement. When the visual field is unchanged, "Delta Program" indicates a fluctuation: aggravation or improvement (almost always insignificant). A subjective alteration is always underlined by "Delta Program". The program allows an objective interpretation and, when it is combined with the usual objective interpretation, makes the evaluation of campimetric deficiency easier. The importance of statistical analysis, besides the fact that it associates the visual field to one or several mean values, is to set it off as exactly as possible. Flammer and coll. (1985) propose a new index: "corrected loss variation".
差值表在数字表格上给出了首次和第二次检查之间的差异。置信区间由一种统计检验（T检验）给出，该检验可应用于视野的以下部分：病变区域、整个视野。我们展示了一些青光眼患者的视野检查结果（程序33），通过“变化模式”进行分析。我们可以做出以下评论：当我们评估改善情况时，“Delta程序”会突出显示，这表明：有显著改善。当视野没有变化时，“Delta程序”表明有波动：加重或改善（几乎总是不显著）。主观变化总是会被“Delta程序”突出显示。该程序允许进行客观解释，并且当它与通常的客观解释相结合时，会使视野缺损的评估更加容易。统计分析的重要性，除了它将视野与一个或几个平均值相关联之外，还在于尽可能精确地将其区分出来。弗拉默及其同事（1985年）提出了一个新指标：“校正损失变异”。
