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4 Other functions
4.4 Switching fixation target
This instrument automatically switches to an appropriate fixation target and the position of patient’s eye fixa-
tion when the photography modes are changed.
Please note that fixation targets are automatically switched according to the photography mode, not accord-
ing to the state of the patient or the part required to be photographed.
This section describes how to change the fixation target and the position of the patient’s eye fixation.
Procedure
1
Press the “FIXATION button” on the LCD monitor.
2
Select a button from “EXT”, “CENTRAL”, “DISC”, “MACULA”, and “PERIPHERAL” buttons, which ap-
pear on the LCD monitor.
EXIT
R ID: No ID
50W
Blue
SP4.0
Central
D+
50
ࠋ
NON-MYD
FLASHDOWN FLASH UP
VIEWER
FIXATION USER1
USER2
USER3
EXIT
R ID: No ID
50W
Blue
SP4.0
Central
D+
50
ࠋ
NON-MYD
FLASHDOWN FLASH UP
VIEWER
EXT
CENTRAL
MACULA
PERI
PHERAL
DISC
FIXTION
1 2
The function and main intended use of each button are shown below.
Button Fixation target and its position Common use
EXT External fixation target
When you are observing under
visible light or want to guide the
patient's fixation to a part to be
photographed.
CENTRAL
Internal fixation target: center of
posterior
When you want to guide the pa-
tient's fixation under infrared ray
observation. The position of the
fixation target is internally fixed in
the instrument; therefore, stability
is increased when photographing
repeatedly.
DISC
Internal fixation target: center of
optic disc
MACULA
Internal fixation target: center of
macula
PERIPHERAL
Internal fixation target: center of
macula, and one of eight periph-
eral points (according to the set-
ting)
When you want to perform mosa-
ic mode photography with macula
in the center under non-mydriatic
observation.
You may configure the settings to
specify an area and sequence of
photography.
For all of the above fixation targets, a red and a green lamp alternatively turns on.
Important
◇ The internal fixation target is unavailable for mydriatic color photography, Red Free photography, or
fluorescence angiography (observation with visible light). To use the internal fixation target in these
photography mode, switch to the “LCD monitoring” mode.