Short-Wavelength Automated Perimetry (SWAP)
Humphrey Field Analyzer II-
i
series User Manual 2660021145640 A
9-10
SITA-SWAP Case Studies
The following examples illustrate various aspects of SITA-SWAP analyses.
Case 1: Classic Nasal Step
Figure 9.6 Nasal Step Seen in SITA-SWAP Printout
In this example, you can see a significant nasal step and arcuate scotoma in the superior visual field
of this patient's right eye on the SITA-SWAP printout. Reliability indices and Gaze Tracking indicate
the patient was a reliable perimetric subject. The Glaucoma Hemifield Test (GHT) indicates the visual
field is “Outside Normal Limits.” Although the Mean Deviation (MD) is not significant, the Pattern
Standard Deviation (PSD) is flagged at the P <0.5% level indicating a significant localized visual
field defect as indicated in the Pattern Deviation probability plot.
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