64
OPERATING PROCEDURES: NT (Tonometry) Measurement: NT Mode
In the case of 3D auto-tracking:
1) Perform rough alignment and focusing by
manipulating the joystick to move the
alignment spot in the working range of
auto-tracking
2) When the alignment spot is placed within
the working range of auto-tracking, the
device automatically starts alignment and
focusing.
In the case of 2D auto-tracking:
1) Perform rough alignment and focusing by
manipulating the joystick to move the
alignment spot in the working range of
auto-tracking.
2) When the alignment spot is placed within
the working range of auto-tracking, the
device automatically starts alignment.
3) As the focusing indicator is displayed,
manipulate the joystick until the optimal
focusing indicator is displayed.
When the auto-tracking function is turned off:
1) Manipulate the joystick to move the align-
ment spot reflected by the patient’s eye
within the alignment target.
2) As the focusing indicator is displayed,
manipulate the joystick until the optimal
focusing indicator is displayed.
During the focusing, maintain alignment
between the device and the patient’s eye.
• When the 74. TARGET TYPE parameter is
set to AR/NT, the indications on the screen
are as shown on the right.
The indication of the applanation area and
focusing indicator is different from the one dis-
played when the parameter is set to RKT.
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Applanation area
Up-and-down and side-to-side alignment: Auto
Focusing: Auto
Focusing: Manual
Up-and-down and side-to-side alignment: Auto
Focusing: Manual
Up-and-down and side-to-side alignment:
Manual
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