PDR-7000 Operation Manual
4 TEST METHOD
4.1 Unaided Visual Acuity Test
1. Press
2. Press
The left measuring window is
occluded.
3. Obtain the unaided VA for the
right eye.
Change the chart with or
The VA of the last presented chart is in the VA
field.
4. Press
The left measuring window is opened and the right one is occluded.
5. Obtain the unaided VA for the left eye.
Follow the same procedure as Step 3.
6. Press
The both measuring windows are opened.
7. Obtain the binocular unaided VA.
Follow the same procedure as Step 3.
The unaided VA test is completed.
4.2 Aided Visual Acuity Test
It is possible to measure the aided VA when LM data is entered.
1. Press
The aided VA test starts.
According to the LM data, the corrective lenses are placed in the measuring windows.
2. Test the right, left, and binocular VA.
Follow the same procedures as Steps 2 to 7 of 4.1 Unaided Visual Acuity Test.
- 58 -
To Next Page
Loading...