EZER EDR 7800, Руководство по эксплуатации

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10.9 10.9 10.9 10.9
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 eaully.
Way of Test
1. This test must be performed only after fixing the cylinder axis.
2. On Special Chart clause of touch 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 eqully. 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 10-9] Cylinder Power Test