Shortened Measurement Time of Functional Visual Acuity for Screening Visual Function

Figure 3

The Bland–Altman plot shows the agreement between the maximal visual acuity in logarithm of the minimum angle of resolution (logMAR) measured using the standard- and short-version methods. The solid line shows the mean difference, and the dashed lines show the 95% limits of agreement. Several plots overlap. 30 maximal VA = maximal VA measured using the short-version method; 60 maximal VA = maximal VA using the standard-version method.