PD+ : Easy Pupillary Distance 4+

Name: PD+ : Easy Pupillary Distance
Author: Zernike LLC

Measure PD & Seg Height

Zernike LLC

- Free
- Offers In-App Purchases

Description

PUPILLARY DISTANCE
PD+ instantly measures pupillary distance (PD) by capturing & processing a single, hi-res facial photo. Measurement accuracy is guaranteed to be the highest achievable by the capability of your device's camera system. Far and near PD's -- binocular & monocular -- are always available at no cost.

SEG HEIGHT
PD+ instantly measures Segment Height -- Seg Height -- for the frames you are currently wearing. Accurate seg height and PD measurements are needed to ensure that lenses being made for your frames are properly centered on your eyes to achieve optimal viewing clarity. Please note: Seg Height is currently only supported on devices equipped with the TrueDepth or LIDAR camera systems (e.g., iPhone X and later non-SE models).

CALCULATORS
- Rx Transposition
- Vertex Adjustment
- Crossed Cylinders (over-refraction)
- Keratometry Conversion
- Visual Acuity Scale
- Estimated visual acuity
- Minimum Blank Size (MBS)
- Simple Magnifier and Spectacle Magnifications

27 Sept 2024

Version 1.7.2

• PD measurement for supported liDAR back cameras (e.g., iPhone 12 Pro and newer; recent iPad Pros) - accurate PD measurements from up to 6 feet away.
• Custom Calibration - adjustable sensitivity value for personalized calibration addressing reported inaccuracies from certain older devices' TrueDepth cameras.
• Bug Fixes and Improvements

The developer, Zernike LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.