PD Measurement Tool
Measure your PD online
In most cases, your optician will include your PD measurement in your prescription after the eye examination. If not, just ask for it.
At Yesglasses, we have developed an easy and free online tool that measures your PD, with which you are able to buy all your future glasses online.
Please read How to Measure PD if you want to measure your PD manually at home.
Let's guide you on how to obtain your PD value online
1. Remove your glasses if you are wearing one
Natural light or bright environment also improves accuracy.
2. Put a card with a magnetic stripe on your lips
You can use your credit card or any card with a magnetic stripe to measure PD. Stick your lips to the card as the picture shows.
3. Look straight ahead and take a picture of your face
Adjust your camera, look directly at it, and take a picture. Please make sure that we can see your pupils clearly.
