Nidek Medical RT-5100, Руководство оператора

Страница: 77 / 306

59
OPERATING PROCEDURE Standard Program Refraction
2
15
Select whether the near vision test is performed or not.
1) Press .
The “
Near Vision test?
” message
appears.
2) Select whether the near vision test is
performed or not.
Perform the near vision test.

Select [
Yes
]. The cross cylinder lenses
are placed and near point lamp lights up.
Cancel the near vision test.

Select [
No
]. Program A is finished. Go to
Step 28.
16
Enter the patient’s age.
Select the age with the function buttons.
If age is already input, go to Step 17.
Go to Step 17 when the “Preset ADD”
parameter is set to No.
The refractor head converges.
• When the refractor head is converging, have the patient off his face temporarily from the
refractor head.
17
Pull down the near point rod and set the near point chart to the desired working distance
(normally 40 cm).
18
Measure the addition powers.
Select the cross-grid chart on the near
point chart.
Ask the patient, “Which lines are sharper,
the horizontal or vertical ones? Or are they
about the same?”
Horizontal lines

Turn the dial counter-
clockwise in 1 increments until the lines
appear equal.
Vertical lines

Turn the dial clockwise in 1
increments until the lines appear equal.
Same

It is not necessary to change the
addition powers.
161221687130 承認済
Uncontrolled copy when printed.