Nidek Medical RT-5100, Руководство оператора

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12
BEFORE USE Configuration
7-2.
Goes into CYL mode that allows cylindrical powers to be adjusted.
7-3.
Goes into AXIS mode that allows cylindrical axis to be adjusted.
7-4.
Goes into ADD mode that allows addition powers to be adjusted.
*2
The refractor head converges to the working distance of 40 cm (variable) automatically in near mode.
See the “Working distance (WD)” parameter (page 136).
• When the “Preset ADD” parameter is set to “Yes” and the age is not input, the patient’s age can be selected
*3
.
• Each time the key is pressed while the refractor head converges, the addition powers are added or removed.
When the addition powers are removed, the highlight color for ADD on the screen changes and the time display
switches to ADD-OFF. Pressing this key again returns the addition power indication to its original and the
addition powers are added.
After addition power entry, the WD display appears to select the desired WD with the function button.
The mode can be switched among , , , and in ADD mode.
• +

Goes into the mode that allows the values for the near point of convergence (NPC), near point of accommodation
(NPA), positive relative accommodation (PRA), or negative relative accommodation (NRA) to be entered. For each
test procedure, see “4 TEST METHOD” (page 151).
7-5.
Goes into the mode that allows the visual acuity to be entered with the dial.
When the AR or LM data has been entered, press or to present an estimated visual acuity (VA)
chart.
*4
7-6.
Goes into the mode that allows the PD in the refractor head to be adjusted.
Monocular PD (1/2 PD)

Adjust the PD after pressing or in PD mode.
To exit from the mode

Press again.
7-7.
Goes into the mode that allows base in/out prism power in rectangular coordinates or prism absolute value in
polar coordinates to be entered.
See “2.3 Setting Prism Lenses” (page 40) for prism power entry.
*2. When ADD mode starts in a standard program, the ±0.5D cross cylinder lenses with –90
°
are placed.
However, when ADD mode starts by pressing without the program, the lenses are not placed automatically. To place
the ±0.5 D cross cylinder lenses, press .
*3. The addition powers are preset according to the selected age. See “8.4 Preset Addition Power” (page 268).
*4. The estimated VA chart is not presented when the “Preset VA” parameter is set to No or the data has already been entered
in the final field. See “8.6 Estimated Visual Acuity Table” (page 270).
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Uncontrolled copy when printed.