How to measure your PD manually:
1. Grab a dry erase marker and your glasses
2. While wearing your glasses, look at an object about 20 feet away
3. Have your friend dot each lens directly over your pupil
4. Remove your glasses
5. Measure the distance between the 2 markings with a millimeter ruler for the total PD. Your total PD measurement in millimeters (ie: 63.5)
Use an online tool to measure your PD.
You can use your webcam or phone camera to measure your pd. The company Vision Works has an online tool you can use to measure. Check it out here:
