5.1 Preparation
– 17 –
Adjust the height of the examinee’s eye
NOTE: Have the examinee remove contact lenses or spectacles, if he/she is wear-
ing any.
(1) Turn the roller toward you in order to move the measurement head away from
the examinee.
(2) Have the examinee sit and place his/her chin and forehead rest and forehead
rest.
(3) Adjust the height of the chin
rest by pressing
CHIN
REST
switches so that the
eye of the examinee is
aligned with the height
adjustment mark on the face
rest.
CAUTION
Ensure that the examinee has not placed his/her hand or
fingers under the chin rest. Otherwise, fingers may be
hurt.
CAUTION
Wipe the forehead rest with ethanol or glutraraldehyde
solution to disinfect it each time a different examinee
uses it, in order to prevent infection.
Please consult a specialist for the procedure of disinfec-
tion.
If you are using disinfectant other than those specified
above, or if you are mixing another disinfectant with etha-
nol, please also consult a specialist, because they may
harm the forehead rest.
CAUTION
Change the chin rest paper each time the examinee
changes in order to keep the chin rest clean.
6
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