Performing an Exam
(continued)
Cross Cylinder
(continued)
Smart Test
(continued)
8. Turn the
CONTROL KNOB
to present position 1 and position 2 to the patient. The amount of Cyl
change is indicated in the lens aperture at the top of the screen.
9. Ask the patient: “Which is better, 1 or 2?”
10. If the patient states a preference, tap
1
or
2
on the screen, or turn the
CONTROL KNOB
to that
number and press the button.
11. Repeat steps 8 - 10, until the test automatically finishes.
Note:
Turn the
CONTROL KNOB
eight (8) click stops in one
direction when offering position 1 or 2 to the patient. After
the eighth (8
th
) click stop, the cylinder changes in 0.25D
increments. This allows the user to freely modify the
Cylinder.
Note:
Tap
Undo
at the bottom left of the screen to undo a step in the Cross Cylinder test.
52
16243-101 Rev. G
Содержание VISUTRON 900 Touch
Страница 1: ...VISUTRON 900 Touch User s Guide ...
Страница 85: ...Notes 85 16243 101 Rev G ...
Страница 86: ...Notes 86 16243 101 Rev G ...
Страница 87: ...Notes 87 16243 101 Rev G ...
