52
OBJECTIVE OPERATIONS
Alignment and photography
The alignment operation is done with the control lever.
For details about movement/adjustment of the instrument body with the control lever, see the "Align-
ment and photography" on page 42.
1
Hold the control lever and pull the instrument body to the utmost limit toward the patient.
2
Using the control lever, move the instrument body right and left, up and down to display the
patient's eye at the center of the fundus/anterior segment live image area.
3
Align the ( ) scale with the patient’s pupil on the touch display of the instrument body. Make sure
that the patient’s pupil is larger than the ( ) scale. Even if the pupil is smaller than the ( ) scale,
the small pupil diaphragm is automatically set to "ON" during photography by setting the auto-
matic small pupil (diaphragm) function, which is usable only for the color fundus photography.
So, it is not necessary to set it to "ON" by the
on the con-
trol panel.
4
Push in the instrument body slowly toward the patient side, and the fundus image appears on the
fundus/anterior segment live image area.
5
The ( ) scale on the touch display moves to the alignment position corresponding to the picture
position.
6
Ask the patient to see the green light (internal fixation target).
7
As watching the image on the touch display, adjust its brightness by touching the [Illumination
level] display on the touch display.
8
Push in the instrument body straight. After the alignment bright spot and split lines appear, the
auto focus function changes the split lines into one line automatically.
9
Using the control lever, change the alignment bright spots into one spot and put it into the ( )
scale.
NOTE
• For dilation, refer to the "MEMO" on page 43.
• If the pupil diameter is almost the same size of the ( ) scale, the automatic
small pupil (diaphragm) function does not work though the automatic small
pupil (diaphragm) function is set and, under this condition, the instrument
takes a picture. If you are not satisfied with the image in this case, set the
to "ON" on the control panel and take
a picture again. Then, compare the image with the first one.
NOTE
For setting the illumination level, refer to "Setting the illumination level" on page
40.
SMALL PUPIL DIAPHRAGM SELECTOR BUTTON
SMALL PUPIL DIAPHRAGM SELECTOR BUTTON