Nidek Medical AFC-330, Руководство оператора

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GLOSSARY :
 Expected service life
A period of time beyond which the reliability and safety of the system cannot be guaranteed
even with normal use and regular maintenance that involves proper exchange of mainte-
nance and consumable parts, repair, and overhaul.
 Low-light photography mode
In Low-light photography mode, the automatic ISO speed adjustment allows capturing of
images of the usual brightness with lower flash intensity than usual. It is useful for patients
whose iris easily contracts.
 Optical working dots
Used to perform manual alignment to the fundus.
They are two illumination spots of infrared LEDs reflected from the cornea that are displayed
on the left and right sides in the fundus observation screen. When they are adjusted on the
optical working dot charts and can be seen clearly, the image capturing unit is in the opti-
mum position for image capture.
 Panorama photography mode
Used to capture panoramic funds images. The desired two to nine images can be captured
and arranged as a composite panoramic image using NIDEK image filing software, NAVIS-
EX.
 Required pupil diameter
Indicates the minimum pupil diameter required for proper image capture. The required pupil
diameter for this device is 4 mm in diameter. The device is equipped with the function to
judge automatically if the patient’s pupil is larger or smaller than the required pupil diameter.
 Small pupil photography mode
Used for image capture of eyes whose pupil diameter is smaller than the requirement but
larger than 3.3 mm in diameter. In this mode, a little amount of flare may be captured on the
peripheral area.
 Stereo photography mode
Used to capture two fundus images: one at about 1 mm away to the temporal side from the
fundus center, and the other at about 1 mm away to the nasal side from the fundus center.
The two captured images can be viewed stereoscopically using the stereo viewer on the
image filing software NAVIS-EX.
 Working distance
Indicates the distance between the objective lens and the corneal surface at the optimum
position for fundus image capture.