76
10-14.
Horizontal Coincidence (Aniseikonia) Test
-
Purpose: Operate Aniseikonia and horizontal Heterophoria test by
coincidence (Aniseikonia) chart during subjective test.
-
Chart: Horizontal coincidence (Aniseikonia) chart
-
Auxiliary Lens: Polarized filter with 135 degrees (for right eye), and
45 degrees (for left eye)
-
Objective: The upper half of the square seen with the right eye and
the lower half of the square seen with the left eye must
be arranged as a regular square, and the fixation should
be the center of square.
-
Operation sequence
1.
Press Aniseikonia chart to enter horizontal Heterophoria test
mode.
2.
Ask the patient whether he can see the square and dot, and if
yes, ask whether upper/lower half of square are arranged
straightly.
-
In case that the upper half of square is more on right side
than the lower half of square: “Esophoria”, turn the dial
clockwise to increase BO prism, until the upper/lower half of
square is arranged straightly.
-
In case that the upper half of square is more on left side that
the lower half of square: “Exophoria”, turn the dial
counterclockwise to increase BI prism, until the upper/lower
half of square is arranged straightly.
3.
When the test is over, press [OK] button to save the result, or
press [CANCEL] button to delete the result.
4.
If necessary, ask the patient additional question as following
-
“Is the dot located in the center of square?”, “two half of
square have same size?” If the size is same, there is no
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...
