Zeiss Humphrey II-i series - Learning Effect; Patient Learning Effect - Right Eye

Humphrey Field Analyzer II- i series User Manual 2660021145640 A
Guided Progression Analysis (GPA)
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GPA Case 2: Learning Effect
Figure 8.8 Patient Learning Effect – Right Eye
This case illustrates the learning effect. Many patients do better on threshold testing the second or
third time tested. In many cases, GPA automatically removes the first exam in a series because it
shows the learning effect. However in this case, as can be seen in the VFI Plot, the remaining
Baseline still shows a learning effect because exam B has a significantly higher VFI value than exam
A. Therefore, exam A, and perhaps even exam B, should be removed from the GPA analysis.
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B