Ametek Reichert Phoroptor VRx - Cylinder

Adjust Values (continued)
Cylinder
1. Activate the Cylinder value field using one of the following two methods:
Using the Screen
• Touch the C box in the main display area of the screen to activate the Cylinder value eld for
both eyes.
• Touch the box to the left or right of the C box to activate the Cylinder value eld for the
selected eye.
Using the Keypad
• Press the B button, and then press the C button to activate the Cylinder value eld for both
eyes.
• Press the R or L button, and then press the C button to activate the Cylinder value eld for
the selected eye.
Note: The data elds for the eye you are measuring are shown in white.
Note:
The Cylinder value field is highlighted in yellow, indicating it is active.
Figure IU-14, Cylinder Active Boxes
2. Turn the CONTROL KNOB to adjust the Cylinder value by 0.25 D in either direction. Press and
turn the CONTROL KNOB to adjust the Cylinder value by 1.00 D per click stop.
• If Minus (-) Cylinder is selected in the Options Menu, turn the CONTROL KNOB to the left
to increase the Cylinder value (Axis on Axis), or turn the CONTROL KNOB to the right to
decrease the Cylinder value (Axis against Axis).
• If Plus (+) Cylinder is selected in the Options Menu, turn the CONTROL KNOB to the left
to decrease the Cylinder value (Axis on Axis), or turn the CONTROL KNOB to the right to
increase the Cylinder value (Axis against Axis).
• If Plus/Minus (±) Cylinder is selected in the Options Menu, turn the CONTROL KNOB to
the right to increase Plus Cylinder power and decrease Minus Cylinder power, and turn the
CONTROL KNOB to the left to increase Minus Cylinder power and decrease Plus Cylinder
power.
3. Press the CONTROL KNOB to move to the next step.
Instructions for Use (continued)
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16241-101 Rev. D