70
5.
Question the patient, which one he can sees more clearly,
between the red letter downside and the green letter upside.
6.
Tap [R] and turn the dial in clockwise (- direction,) if the left letter
is clear, while in counterclockwise (+ direction) in case of right
one.
7.
Tap [L] and turn the dial in clockwise (- direction,) if the left letter
is clear, while in counterclockwise (+ direction) in case of right
one.
8.
Balance Binocular.
9.
If the upper line is seen clearly, tap [R] and turn the dial
counterclockwise (+ direction) to increase the value of the right
side SPH.
10.
If the lower line is seen clearly, tap [L] and turn the dial
counterclockwise (+ direction) to increase the value of the left
side SPH.
11.
Repeat this until both of upper and lower lines are seen clearly.
10-10.
Worth 4 Dots test
-
Purpose: Operate suppression test during subjective test. You can
find out whether there is internal/external Heterophoria
during this test.
-
Chart: Worth 4 Dot chart
-
Auxiliary lens: Red filter (for right eye), green filter (for left eye)
-
Objective: Checkup how many dots are seen. In normal case, it is 4.
-
Operation sequence
1.
Press worth 4 Dot chart to enter suppression test mode.
2.
Ask the patient how many lights he sees.
-
If he says 4dots, the patient’s fusion is normal.
-
If he says 2dots, the patient is using right eye only and the
Summary of Contents for Smart DR13
Page 1: ......
Page 33: ...32 Fig 21 Controller View Screen...
Page 37: ...36 Fig 25 List View and Detailed View Received data...
Page 44: ...43 Fig 31 Set the Risley prism left and the Jackson cross cylinder Right...
Page 46: ...45 Fig 33 Pop up selecting Auxiliary lens and CP Operation penal...
Page 50: ...49 Fig 35 Adjustment of the SPH CYL AXIS Value...
Page 61: ...60 Fig 50 Near Horizontal Von Graefe Test...
Page 85: ...84...
