Nidek Medical AFC-330, Руководство оператора

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6
BEFORE USE : Device Configuration
6. External fixation lamp
The external fixation lamp is optionally available.
When the external fixation lamp is connected to the device, it is recognized by the device and becomes
available.
For detailed operation, see “2.8.1 Fixation lamp mode” (Page 101).
7. Spacer for anterior eye image capture
Attached to the forehead rest in Anterior eye photography mode.
Clean it before each patient.
8. Forehead rest
The patient’s forehead is rested on the forehead rest to prevent their head from moving.
Clean it before each patient.
9. Objective lens
Check the cleanliness of the objective lens before image capture because it considerably influences the
result of image capture. Be sure to cover it with the lens cap when images are not to be captured.
10. Eye level marker
The height of the chinrest is adjusted so that the patient’s eyes are roughly aligned to this eye level marker.
11. Chinrest
Clean the chinrest before each patient.
12. Compensation lens select lever + / −
Used to insert the plus or minus compensation lens when the refractive error of the patient’s eye is out of the
range between
− 12 D and +15 D or when anterior eye images are to be captured.
When either of the two compensation lenses is inserted, neither the focus split nor the split indicator
appears. In such a case, the focus needs to be adjusted manually by rotating the focus knob while observing
the fundus image in the LCD touch-screen.
− : When the lever is pulled to the first stop, the minus lens is inserted into the optical path and a “ − ” indication
is displayed at the bottom right of the screen. Images of an eye with refractive error of − 33 D to − 7 D can
be captured using the minus lens.
+: When the lever is pulled to the second stop, the plus lens is inserted into the optical path with a “+”
indication displayed at the bottom right of the screen. Images of an eye with refractive error of +11 D to
+35 D, or anterior eye can be captured.
13. Operation panel lamp
Illuminates the operation panel for operability in a dark environment.
• Be sure to pull the compensation lens select lever to a position where a click is felt.
If pulled to an intermediate position, the right or left side of the image becomes dark and proper
images cannot be captured.