3-5
3.2.3 Adjusting of Patient's position
The Chin Rest is attached with the Chin Rest paper
to maintain it cleanly. It is suggested to use the
Chin Rest paper so as not to give an uncomfortable
feeling to the Patient.
Before proceeding to the measurement for the next
Patient, first remove the top sheet of the Chin Rest
paper and next clean the Head Rest and wipe the
Head Rest cleanly with a piece of clean cloth. Wipe
up the Head Rest and the Chin Rest with a piece of
cloth soaked with rubbing alcohol when needed.
Have the Patient look at the fixation target through
the measurement window with not to feel to tense.
The wrong direction looking or eye movement
causes incorrect measurement.
The Patient places his face on the Chin Rest $ and adjust the
level of the Chin Rest so that the tail of the eye aligns to the
eye level mark %. If pressing the Chin Rest Button UP ( of
the Operation Button (Fig. 2), the Chin Rest will rise, while if
pressing the DOWN ), the Chin Rest will be lowered. The
positioning relation of the Chin Rest and the Measurement
Head is confirmed by the height indication * displayed in
the left lower part of the Measurement Screen. Measurement
window and eye level mark % is same height level when
height indication mark is situated in the halfway point of above
and below. The Patient's forehead is lightly applied and se-
cured to the Head Rest & after decided Patient's eye level.
Ԙ
ԙ
Ԛ
ԛ
(Fig. 1)
Ԟ
ԝ
Ԝ
(Fig. 2)
(Fig. 3)
3.2 PREPARATION FOR MEASUREMENT