Programmed Axis Adjustment; Freely Selectable Axis Adjustment - Ametek Reichert Phoroptor VRx User Manual

Instructions for Use
Cross Cylinder - Smart Test

Programmed Axis Adjustment

1. Turn the CONTROL KNOB to change the Axis value in pre-programmed steps.
Note: The degree of the first change depends on the Cylinder power. The higher the cylinder
power, the smaller the change:
Note: You can also change the degree of Axis change by touching the 1°, 5°, 10°, or 20°
screen icon, located in the lower left of the screen.
2. Press the CONTROL KNOB, or touch 1 or 2 on the screen to enter the patient's preferred
selection.
3. Press the ENTER button, or touch the EQUAL screen icon, when the patient indicates that the
target appears equally clear or equally blurry.
Note: Once you complete the Axis adjustment, the next step is Cylinder power adjustment.
Note: Touch UNDO to go back any number of steps in the Cross Cylinder test.
Note: The Axis position appears as a red line in the Lens aperture.

Freely Selectable Axis Adjustment

It is possible to adjust axis beyond whatever increment was selected for the axis adjustment (1°, 2°, 5°,
10°, 20°). Turn the CONTROL KNOB 8 click stops in one direction when offering position 1 or 2 to the
patient. After the 8 th click stop, the axis changes in 1° increments. This allows the user to freely modify
the axis in that direction.
70
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Cylinder Power First Alteration
0.25 to 0.75 D
1.00 to 2.75 D
3.00 to 8.00 D
20°
10°
5°
16241-101 Rev. D