Kowa VX-10a, Instruction Manual, Page: 36 / 64

3. Basic photography
My
dria
tic fluor
escein angiog
ra
phy
3
-4
P3-10
3-4 Mydriatic fluorescein angiography
This paragraph describes a method of mydriatic fundus fluorescein angiography. Reduce room’s luminance as low
as you can barely read a newspaper.
Steps 2) through 10) are the same with those of “3-3 Mydriatic color photography.” For more information, see the
items of “3-3 Mydriatic color photography”.
1) Select mydriatic fluorescein by the mode select button on the right-hand panel.
2) Adjust the optical viewfinder diopter.
3) Select a desired photography optical path by the camera select switch on the left-hand panel.
4) Check the remaining number of film on the camera back of selected optical path.
5) Check the diameter of pupil.
6) Compensate the examined eye’s diopter.
7) Adjust positioning of the examined eye.
8) Adjust the position of external fixation lamp.
9) Guide the patient’s gaze point.
10) Adjust the focus.
Next, proceed to the procedure necessary for fluorescein angiography only.
A blue exciter filter is inserted automatically when “F.A.” is selected by the mode select button in Step 1) above.
11) Fluorescein injection and timer start.
Simultaneously with fluorescein injection into the vein, press the timer button and measure the amount of time
by the timer.
The timer will indicate the amount of time in a 5-digit number increasing 0.1 second at a time. At the same time
with photographing, timer counts are recorded on the left side of image on each frame of 35-mm film. If a filing
device is in use, timer counts are simultaneously recorded.
12) Inserting barrier filter.
Insert the barrier filter in the photography optical path by pressing “F.A. Filter” button.
13) Press the shutter button to photograph.
Perform fine adjustment of focusing and aligning and then press the shutter button.
The film will be advanced automatically.
11) Timer start 12) Inserting F.A.Filter 13) Shutter button
FA Color
Blue
Eye
FA Color
Blue
Eye
• In some cases, the use of fluorescent agent may aggravate patient’s medical conditions or cause some
patients to go into shock. Monitor the patient closely during photography and make sure that there are
no abnormal changes in the patient. Make sure to read the instructions for use carefully before using
fluorescent agent, and follow the instructions.
• To avoid the system overheating, particularly when you carry out continually shooting 10 times using the
maximum flash intensity (300 W) at one second intervals, please turn the power off for 10 minutes.