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. Author manuscript; available in PMC: 2017 Jul 1.
Published in final edited form as: Optom Vis Sci. 2016 Jul;93(7):720–730. doi: 10.1097/OPX.0000000000000869

Figure 4.

Figure 4

GVF 5 (34 target-size errors, 38 seeing/non-seeing errors). Most problems with this GVF resulted from the mistaken identification of the II-4e seeing isopters as V-4e non-seeing isopters due to the similar colors used for these two test targets. Errors were made by all digitizers except Digitizer 3. When these target-size errors occurred, the superior-most II-4e seeing area’s target size was always mislabeled, and the central II-4e seeing area’s target size was only mislabeled when all three II-4e were similarly mislabeled. Seeing/non-seeing errors coincided with target-size errors, with few exceptions. Isolated seeing/non-seeing errors followed the same occurrence pattern as target-size errors.