196
TEST METHOD
Divergence Test
4.5
Divergence Test
Use: To test divergence ability of the eye
Chart: Vertical line
Applicable model: CP series U and M / SSC-330 (300) U / SSC series M / SC series M [For other
types, use the highest VA letter chart or the letter chart which is little higher than the patient’s VA.]
Auxiliary lens: Binocular rotary prism
For Plus Package, see "5.2.4 #11 Divergence (Far), #17 Divergence (Near)" (page 214).
1
Present the vertical line chart.
Press
or
. For the near point, press
and set the chart manually.
The 6
BU dissociation prism is placed in the right measuring window.
The base in/out prism powers can be entered.
2
Press [Phoria] to display the Divergence
test window.
The 6
BU dissociation prism is removed
from the right measuring window and both
windows are opened.
[Div.], [Blur], [Break], and [Recov] appear.
Pressing
sets the vertical prism cor-
responding to the vertical phoria. Press
as necessary.
3
Turn the dial counterclockwise to add the BI
prism powers to both eyes until the binocu-
lar view becomes blur.
Also possible by pressing
.
4
Press [Blur] when the chart appears blur.
The prism powers are stored as blur point.
The [Blur] indication is highlighted. It means that the prism powers have been entered.
When highlight [Blur] is pressed again, the entered prism powers are cleared.
(In far mode, the chart seldom appears blur. At this time, go to the next step.)
5
Turn the dial counterclockwise to add the BI prism powers to both eyes until the chart
appears dissociated.
Also possible by pressing
.
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Содержание RT-5100
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Страница 46: ...28 BEFORE USE Getting Started and Exiting 161221687130 承認済 Uncontrolled copy when printed ...
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