Canon TX-F Operation Manual page 33

[Cause 3]
[Remedy 3] Instruct the examinee to keep his/her eye open wide until measure-
[Cause 4]
[Remedy 4] Display the bright dots near the center using trackball and roller.
[Cause 5]
[Remedy 5] Perform measurement in MANUAL mode (see section 5.3). How-
[Cause 6]
[Remedy 6] Do not expose the examinee's eye directly to bright artificial light
If the alignment still cannot be performed, align and measure the eye manually by
referring to section 5.3.
After the alignment, measurement is performed automatically
6
When the alignment is done, air is puffed and the intraocular pressure will be mea-
sured.
FULL AUTO mode
Alignment and measurement will be performed. They will be repeated three times
when number of times of measurement you have selected is "
AUTO mode
Measurement will be performed once. Press
ment and measurement repeatedly. Maximum of 10 data can be saved in memory.
NOTE: It is recommended that the measurements be repeated at least three times
in order to obtain most reliable measurement.
The pupil is obscured by eyelashes or eyelid.
ment ends, or help them open the eye widely by lifting up the upper
eyelid lightly with your fingers. Then, press the
again.
Pupil is eccentric or deformed. Examinee has undergone an iris
operation.
Then, press the
START
There is problem in surface of examinee's cornea.
ever, error may occur even in MANUAL mode if the disease is seri-
ous.
Effect of artificial light or sunlight reflected from the examinee's
eye.
or sunlight.
– 23 –
5.2 FULL AUTO/AUTO Measurement
switch again.
switch again to perform align-
START
START switch
3 ".