Canon TX-F Operation Manual page 39

Perform focusing
6
Turn the roller back and forth to position the bright dots vertically between the
alignment guides.
Measure the eye
7
Tell the examinee that measure-
ment is going to be performed
and ask the examinee to open
his/her eye wide.
After ensuring that the position-
ing and focusing are as required,
press the
START
Air is puffed and the intraocular
pressure will be measured.
The result immediately after the measurement is displayed on the left side of the
brackets [].
If the level meter is set to ON in SET mode, the level meter for the newest mea-
surement will be displayed.
While the instrument is charging up, the mark indicating the eye being measured
and the measurement value blinks.
After the charge up for the measurement is completed, the result will be displayed
within the brackets [] and the next measurement will start.
See section 3.4.2 for more information on the display.
If any message appears and measurement is suspended
Take the measures by referring to section 8.2.2.
If error occurs even though the positioning is correct
Error may occur when bright dots are dim due to deformation of cornea or kerati-
tis, even if positioning is performed properly.
switch.
– 29 –
5.3 MANUAL Measurement
Guides
MANUAL
3 0
12
R [ ,
L [ ,
N o . 0 0 0 0 0 1
mmHg
STD
, ]
, ]