Visionix VX40 - Pupil Distance Measurement Interface; Prism Calculation and Results

Using the VX40
VX40 User Guide
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Pupil Distance Measurements
This interface displays the different P.D. measurements.
Figure 4-2: P.D. Mesurements Interface
Table 4-4: P.D. Measurements
1
Right P.D.
2
Total P.D.
3
Left P.D.
4
Net Vertical Prism (the difference in height between
the left and right optical centers.)
Note:
The net vertical prism displays the equivalent prismatic power in mm. It appears at
the side with the strongest equivalent power. The blue line represents the weakest
power, and red line represents the strongest power.
Prism Caluclation
This interface is used to manipulate the P.D. It displays the prism
automatically at this specific distance.
Figure 4-3: Prism Calculation