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BASIC OPERATION
When applying the mask by touching:
Only the character mask or horizontal mask can be applied by touching the screen.
• When applying the horizontal mask
Touch the [horizontal mask] button, and the horizontal mask is set to show only the specified line.
• When applying the character mask
Touch one of the charts displayed in the large chart area, and the mask is set to show only the
specified character.
• When inputting the visual acuity
Touch the [visual acuity input] button among the side buttons. The visual acuity is displayed in
the main data area.
Press the [VA] switch, and the list of the visual acuity is displayed on the large chart. Touch the
visual acuity to be recorded.
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