Cross Cylinder - Manual Test
The Manual Cross Cylinder test allows the user to refine Axis in 1°, 5°, or 10° increments, and adjust
Cylinder in ±0.25 D, ±0.50 D, or ±1.00 D increments. (Please refer to Figure IU-19.)
• The Manual Cross Cylinder Test is performed monocularly.
• The Spherical equivalent is maintained during the Cylinder power adjustment.
• If no Cylinder power if present, the Astigmatism check is done rst, followed by the Axis
adjustment. If default charts are selected for the XCyl test, these charts are presented to the
patient. Otherwise, select a chart from the Available Chart Selection.
1. Touch XCyl on the menu bar at the bottom of the main screen.
2. Touch MANUAL to start the test.
Note: The Manual Cross Cylinder test always begins with the Axis adjustment.
Note: Touch Test to switch the type of XCyl test (Manual/Smart/Split Cyl).
3. Touch 1°, 5°, or 10°, located in the lower left of the screen to select the increment of the Axis
adjustment.
Note: Touch it repeatedly to cycle through the different increments.
Figure IU-19, Cross Cylinder - Manual Test Screen
Instructions for Use (continued)
67
16241-101 Rev. D
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