Short-Wavelength Automated Perimetry (SWAP)
Humphrey Field Analyzer II-
i
series User Manual 2660021145640 A
9-6
9 At the conclusion of SWAP testing, slide the visor back into the
forehead rest. See Figure 9.4.
SLIDE VISOR HANDLE
TOWARD YOU
A message will remind you to replace the visor beneath the forehead
rest. Move the visor handle toward you (away from the test bowl). If
the visor is not retracted, stimuli in the superior visual field may not be
seen beyond 35 degrees during white-on-white testing.
Figure 9.4 Returning the Visor to the Retracted Position
Additional Notes on SITA-SWAP
1. If you intend to perform SITA-SWAP testing routinely, we recommend that you use the Alter
Ma
in Menu feature to customize a Main Menu button for this application. The customized
button will make access to this specialized form of testing faster and more convenient. Refer
to “Altering the Main Menu Screen” on page 2-26 for more information.
2. Be careful to check the instrument before starting the first test of the day to see that the visor
is placed in the
retracted position. The visor reminder is not displayed at start up.
3. When beginning the first SITA-SWAP test of the day, the HFA will go through an extensive
self-calibration cycle befor
e you can begin the test. This delay may last up to two minutes and
is normal. It is suggested that you set up the first SITA-SWAP test before you seat the patient.
Many offices do this when they first turn on the instrument for the day. Be sure to have the
room lights very low or off during the initial SITA-SWAP warm-up.
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