ViewLight UNICOS UDR-800P - Monocular Color and Spherical Tests; (Monocular) Red;Green Test

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10.7 Cylinder Power Test
 Purpose: Obtain maximum revised circumference degrees for monocular, using Clock Dial,
Subjective test.
 Chart: Clock Dial
 Auxiliary Lens: None
 Target: All the lines must be seen as equally.
 Way of Test
1. This test must be performed only after fixing the cylinder axis.
2. On Chart clause of main screen, press Clock Dial button to change it into distorted
vision test mode.
3. Press (R) or (L) button to choose the field for test.
4. On touch screen, press (C) or left/right button to change it into Cylinder Power mode.
5. Turn the dial in (-) direction, until all the lines are seen equally. When the location of
the line
which is seen the thickest is changed, the axis must be adjusted.
▶ When the thickest seen line moves counterclockwise, deduct the AXIS value.
▶ When the thickest seen line moves clockwise, add the AXIS value.
[Figure 10-7] Cylinder Power Test