182
TEST METHOD
Binocular Visual Function Test
Vertical phoria correction
1
Present the vertical coincidence chart.
Press
.
The polarizing filters are placed in the measuring windows. (The red and green filters are
placed for the SC-2000, SC-1600.)
The base up/down prism powers can be entered.
2
Ask the patient, “Can you see a square with a dot in the center? Are the left and right
frames aligned? Or, is one higher than the other?”
When they are not aligned, correct them as follows:
Appearance of
chart
Phoria
Correction
<1> The left frame
is higher.
Right eye
hyperphoria
Press
. Turn the dial counterclockwise until the left
and right frames are aligned.
(Add BD to the right eye and BU to the left eye.)
<2> The right frame
is higher.
Left eye
hyperphoria
Press
. Turn the dial clockwise until the left and
right frames are aligned.
(Add BU to the right eye and BD to the left eye.)
• The rotary prism lenses are removed from the measuring windows when the already
selected button is pressed again in prism mode.
ex.When
is pressed in the base up/down prism, the rotary prism lenses are removed.
• Use
or
instead of the dial for fine adjustment.
• When the prism power is added, the prism power can be added in 0.5 D increments by
adding the prism power for single-eye compared to both eyes.
Dial 1.0
0.5
,
0.2
0.1
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Содержание RT-5100
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Страница 18: ... XVI 161221687130 承認済 Uncontrolled copy when printed ...
Страница 46: ...28 BEFORE USE Getting Started and Exiting 161221687130 承認済 Uncontrolled copy when printed ...
Страница 226: ...208 TEST METHOD Visual Acuity Test by ETDRS chart 161221687130 承認済 Uncontrolled copy when printed ...
Страница 274: ...256 MAINTENANCE List of Replacement Parts 161221687130 承認済 Uncontrolled copy when printed ...
Страница 302: ...284 EMC ELECTROMAGNETIC COMPATIBILITY 161221687130 承認済 Uncontrolled copy when printed ...