Humphrey Field Analyzer II-
i
series User Manual
2660021145640 A
Short-Wavelength Automated Perimetry (SWAP)
9-13
Case 3: Effect of an Intra-Ocular Lens on SITA-SWAP Results
Case 3
Figure 9.8 Effect of an IOL on Probability Plots and MD in Patient with Early Glaucoma
This patient had cataract surgery and has an intra-ocular lens (IOL) in place of the crystalline lens.
Because the SITA-SWAP database contains normal subjects that had various degrees of lenticular
change in this age group, the patient has a mean deviation (MD) that is much higher than the
norm. A significant nasal step scotoma can be seen in the pattern deviation probability plot that
does not stand out as clearly on the total deviation plot. The GHT indicates “Outside Normal Limits”.
This patient has early glaucoma.
It is not unusual to see positive MD values with SITA-SWAP in patients that have IOL’s. Although
their SITA-SWAP visual fields will often be supernormal for their age group, these patients’ visual
field defects can still be determined with the SITA-SWAP testing strategy.
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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