30
BASIC OPERATIONS
PREPARATION OF THE PATIENT
1
Drop the mydriatic agent in the patient's eyes to achieve full dilation. Make sure that the
patient's pupils are fully dilated before beginning photography.
If dilation is inadequate:
When the pupils are only dilated from 4.5mm to 5.5mm, press the
.
(If the pupils are dilated to 4.5mm or less, photography is not possible.) Also, photo-
graph at an angle of coverage of 35° or 20°. When photographed at the 50° angle, it
may not be possible to eliminate flare completely.
* Do not use the
in other cases except when dilation of the pupil is
inadequate.
2
Lead the patient to the photography room.
3
Pull the instrument properly to the operator side.
4
Let the patient sit down in front of the instrument.
5
Adjust the height of the table or the chair so that the patient can relax with his/her chin
placed centrally on the chinrest. Then, let the patient rest his/her chin on the chinrest.
CAUTION
To avoid injury while moving the chinrest up and down, instruct the
patient to keep hands away from moving parts.
CAUTION
Be careful not to let the patient hold the column. His/her finger may
be pinched between the column and 1st/2nd arm causing injury.
NOTE
Ask the patient to remove any glasses or contact lenses.
SMALL PUPIL SWITCH
SMALL PUPIL SWITCH
4.5~5.5mm
5.5mm or more
Содержание TRC-50DX
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