Free PD Measurement App - The Easiest Way

Trying to order prescription glasses online but don't know your pupillary distance (PD)?

Getting an accurate PD measurement is crucial for ensuring your new glasses lens fit properly. Instead of guessing or using outdated measurements, try the ANRRI Eyewear app for a quick and easy PD calculation.

How to use ANRRI Eyewear for PD measurement

What you will like best about ANRRI Eyewear is how quick and hassle-free it is to use.

Yes, ANRRI Eyewear provides the functionality to detect a user’s pupillary distance using just your smartphone camera.

The whole process takes just a few seconds. Simply place your iPhone in front of your face, then align your face with the front camera of the iPhone, the measurement will be done automatically.

Yes, it’s that easy, no complex manual measurements are needed!

You might be interested in what’s really going on behind the scenes

The Virtual Try-On and PD (pupillary distance) Measurement features of the ANRRI Eyewear app are developed using Apple's ARKit and RealityKit frameworks.

However, it is essential to note that the ARKit face detection and tracking feature requires a device equipped with a front-facing depth camera (TrueDepth Camera) or an A12 processor or higher.

By utilizing the face detection and tracking feature we can obtain facial data of the user. The PD measurement process involves leveraging ARKit and RealityKit technologies to accurately track and map the user’s facial features.

The pupillary distance refers to the distance between the centers of the pupils in millimeters. In the context of ARKit, this involves extracting facial landmarks related to the eyes and calculating the distance between them.

By leveraging ARKit's facial tracking capabilities and accessing the necessary facial landmark data, we can accurately identify the position of the user's pupils. Using geometric calculations and coordinate transformations, we can then determine the precise pupillary distance measurement.