Kowa VX-10a, Instruction Manual, Page: 33 / 64

3. Basic photography
My
dria
tic color photog
ra
phy
3
-3
P3-7
6) Compensating the examined eye’s diopter.
Insert diopter lens by diopter lens button.
Examined eye’s diopter –12D to +13D : Diopter lens is not necessary.
–10D to –32D : Insert minus (–) diopter lens.
+10D to +35D : Insert plus (+) diopter lens.
7) Setting the examined eye’s position.
Adjust positioning of the fundus camera such that the luminous spots for alignment can be positioned as illustrat-
ed in the drawing below, by operating the control lever. See the point in the paragraph in the next page “
n
How
to guide the observation light to the examined eye in mydriatic photography.”
Luminous spots for detecting
6) Diopter lens buttton 7) Alignment (positioning) alignment
FA Color
Blue
Eye
8) Adjusting the position of external fixation lamp.
Adjust the position of external fixation lamp such that it comes in a position as illustrated in the drawing below.
Posterior pole photography is enabled in this position.
9) Guiding gaze point of the examined eye.
Instruct the patient to fixate the flashing tip of the fixation lamp with his or her eye (not to be examined). Guide
his or her gaze point to the location of fundus to be photographed while slowly moving the external fixation
lamp.
Position of fixation lamp for photogra 9) Example of guiding the patient's
8) External fixation lamp phing the posterior pole gaze point
When
photographing
the right eye When
photographing
the left eye
When photographing
upward, direct the fixa-
tion lamp upward.
When photographing
downward, direct the
fixation lamp downward.