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INDICATION OF CHART
Astigmatism chart (application of the active chart)
For the astigmatism chart, two or more types of radiation can be selected by setting. Moreover, there
is the function to indicate the cylinder axis more accurately.
1
Select the astigmatism chart from the chart page and indicate it on the liquid crystal display.
You can perform the normal astigmatism test in this condition.
2
Touch the [Rotate] button among the function buttons.
The radial lines except the "12 o'clock" and "6 o'clock" lines are changed to light-color.
3
Turn the dial according to "Dial Navigation", and you can rotate the deep color line by 5°. Turn
the dial until the deep color line is seen most clearly.
Turn the dial in the "+" direction of "Dial Navigation". The cylinder axis rotates counterclockwise.
Turn the dial in the "-" direction of "Dial Navigation". The cylinder axis rotates clockwise.
* When operating through mouse/personal computer:
Operate the mouse according to "Mouse Navigation", and you can rotate the deep color
line by 5°. Operate the mouse until the deep color line is seen most clearly.
Click the right mouse button on the mouse navigation. The cylinder axis rotates clockwise.
Click the left mouse button on the mouse navigation. The cylinder axis rotates counter-
clockwise.
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