How to Measure Your PD

Getting your Pupillary Distance is easy with our AI-powered tool. Follow this simple guide to get an accurate measurement in minutes.

Your Pupillary Distance (PD) is simply the gap between the centers of your pupils. It's a crucial number for buying glasses online because it ensures your lenses align perfectly with your eyes. We offer two ways to measure it: Auto Mode (Recommended) and Manual Mode.

What You Need

Your Device

A smartphone, tablet, or computer with a webcam. Ensure you are in a well-lit room.

Reference Object

A standard credit card (most common), dollar bill, or A4 paper. We use this to scale the image accurately.

Method 1: Auto Mode (Recommended)

Position Yourself

Hold your reference object (e.g., credit card) directly under your nose, holding it by the corners. Keep it perfectly horizontal. Look straight at the camera.

Capture

Click the "Capture Photo" button. Our AI will automatically detect your face and marking your pupils withRed Dots.

Mark Reference

The AI handles the eyes, but for maximum accuracy, you simply click the left and right edges of your card.Green Dots will appear. Your PD result is shown instantly!

Method 2: Manual Mode

Prefer to use an existing photo? No problem. Switch to "Manual Mode" at the top of the app.

  • Upload a photo taken with a reference object.
  • Manually click the center of your Left Pupil.
  • Manually click the center of your Right Pupil.
  • Mark the edges of your reference object.

🌟 Pro Tips for Accuracy

  • Remove your glasses before measuring.
  • Look at the camera lens, not the screen, to ensure your eyes are straight.
  • Make sure the magnetic strip of the card is facing the camera (for privacy).