Cross Cylinder - Smart Test
Axis Adjustment
1. Touch XCyl on the menu bar at the bottom of the main screen.
2. Touch SMART to begin the Smart Cylinder test.
• The Smart Cross Cylinder test is performed monocularly.
• Spherical equivalent is maintained during the Cylinder power adjustment.
• If no Cylinder power is 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 charts section.
3. Turn the CONTROL KNOB to change the position of the conventional Cross Cylinder.
4. Ask the patient: “Which is better (sharper and clearer), 1 or 2?”
5. Change the Cylinder Axis in the direction the patient prefers.
6. Press the CONTROL KNOB, or touch the NUMBER (1 or 2), to enter the patient’s preferred
selection.
Note: Touch Test to switch the type of XCyl test (Manual/Smart/Split Cyl).
Figure IU-20, Cross Cylinder - Smart Test Screen
Instructions for Use (continued)
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16241-101 Rev. D
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