Cylinder - Ametek Reichert Phoroptor VRx User Manual

Instructions for Use
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 field for
•
both eyes.
Touch the box to the left or right of the C box to activate the Cylinder value field for the
•
selected eye.
Using the Keypad
Press the B button, and then press the C button to activate the Cylinder value field for both
•
eyes.
Press the R or L button, and then press the C button to activate the Cylinder value field for
•
the selected eye.
Note: The data fields for the eye you are measuring are shown in white.
Note: The Cylinder value field is highlighted in yellow, indicating it is active.
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.
16241-101 Rev. D
(continued)
Figure IU-14, Cylinder Active Boxes
61