Hold your reference object (card, ruler, or any known-width object) visible in the camera frame.
After the camera starts, click the left and right ends of the reference object in the video below.
Enter its real width to convert your PD to millimeters.
After the camera starts, click the left and right ends of the reference object in the video below.
Enter its real width to convert your PD to millimeters.
Live Pupillary Distance Measurement
Calibration:
Click the ends of your card/ruler in the video (2 clicks).
Enter actual width: mm
Enter actual width: mm