Humphrey Field Analyzer II-
i
series User Manual
2660021145640 A
Guided Progression Analysis (GPA)
8-19
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.
A
B
Summary of Contents for Humphrey II-i series
Page 1: ...User Manual Humphrey Field Analyzer II i series System Software Version 5 1...
Page 8: ...Humphrey Field Analyzer II i series User Manual 2660021145640 A vi...
Page 74: ...General Operation Humphrey Field Analyzer II i series User Manual 2660021145640 A 2 34...
Page 130: ...Testing Humphrey Field Analyzer II i series User Manual 2660021145640 A 5 20...
Page 158: ...STATPAC Analysis Printing Humphrey Field Analyzer II i series User Manual 2660021145640 A 7 22...
Page 338: ...Kinetic Testing Humphrey Field Analyzer II i series User Manual 2660021145640 A 13 62...
Page 412: ...Care and Cleaning Humphrey Field Analyzer II i series User Manual 2660021145640 A 15 14...
Page 416: ...Product Specifications Humphrey Field Analyzer II i series User Manual 2660021145640 A A 4...
Page 420: ...Product Features Humphrey Field Analyzer II i series User Manual 2660021145640 A B 4...
Page 428: ...Icon Glossary Humphrey Field Analyzer II i series User Manual 2660021145640 A D 2...
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