
AR PD Meter
An intuitive, browser-based tool for measuring pupillary distance. Designed to remove prescription hurdles and help customers complete their eyewear purchase with confidence.
Unblock prescription checkout, without sending customers elsewhere
When the pupillary distance is not on the prescription, customers often stall, give up or guess. AR PD Meter brings a guided, camera-based measurement flow directly into your purchase journey, so PD can be measured accurately and recorded as part of the order.
Two measurement modes for your product page
AR PD Meter offers two complementary modes for measuring PD. You can enable one or both, depending on your conversion goals, optical requirements and user context.
Instant PD
Fast, immediate, camera only
The quickest option: the user looks into the camera. Nothing else to do. Designed to minimise drop-off and capture PD on the fly.
- Optimised for speed and completion rate
- Ideal for remote sales, assisted selling and fast checkout flows
- Margin of error: ~2 mm
Card-verified PD
Guided flow for higher precision
A step-by-step measurement that uses a standard-size card as a scale reference; the card number is not read. On-screen guides and voice prompts help users position themselves correctly.
- Best suited to higher-precision optical requirements
- Clear guidance and alignment cues, mobile-first
- Margin of error: ~1 mm
Designed for completion, not confusion
AR PD Meter follows a proven guided-measurement approach: clear instructions, visual cues and a short, reassuring flow that keeps users moving forward instead of second-guessing their prescription.
Output that fits the way you work
Write PD directly into checkout and order flows
The measured PD can be passed automatically to the prescription configuration or the checkout process, removing the need to copy and paste it by hand and reducing input errors.
Capture PD wherever it makes sense
Deploy AR PD Meter on product pages, in prescription steps, in the basket, at checkout or in post-purchase flows, without interrupting the shopping experience.
Privacy
The measurement stays on the phone
All calculations happen on the customer's device, making this one of the most private measurement methods available. Secure and compliant.
- PD is calculated on the customer's device
- Camera images and video never leave the phone
- No facial data is sent or stored
GDPR*-compliant by design
AR PD Meter supports GDPR-compliant deployment, with clear user consent and enterprise-grade governance. Data handling and retention can be configured to meet your compliance requirements.
Managed in Studio, infrastructure-grade
AR PD Meter is managed in ARShades Studio and works as part of a unified AR infrastructure, alongside Virtual Try-On, 3D Viewer and catalogue management.
This ensures consistent behaviour, central control and scalability across all your digital eyewear experiences.
* Designed to comply with key national data protection regulations, including UK GDPR, CCPA/CPRA, APPI and LGPD.
How to get started
Smart: self-managed in ARShades Studio, as a module of the Smart plan or on its own. Enterprise: tailored, starting with a demo and a pilot project.
Smart
Retail / E-commerce
- Smart plan module, alongside Virtual Try-On
- Or on its own, with ARShades Studio included
- Monthly measurements included
Enterprise
Manufacturers / Brands
- Measurements sized to your volumes
- Bespoke integrations, including code-based (SDK)
- Governance, SLAs, pilot project
Bring PD measurement into your checkout
Request a demo: we start with your purchase journey and show you where to measure PD and how it flows into the order.
ARShades ecosystem
Connected capabilities within the same infrastructure
Virtual Try-On
Interactive try-on managed in Studio
3D Viewer
Interactive digital views of your eyewear
Campaign Catalogues
Campaign-ready catalogues with AR assets
ARShades Gateway
Multi-catalogue orchestration from one branded entry point
VTO Explorer
Guided multi-frame try-on exploration
AI Photoshoots
AI-generated on-model photos of your eyewear
Digital 3D Assets
Validated 3D models for the whole infrastructure
Digital Mirrors
Your catalogue to try on in shops, in showrooms and at events
ARShades Studio
One platform for catalogue, 3D models and images