Measurements are complicated,
EyeDistance is simple!

Gone are the days of manually conducting optical measurements. With EyeDistance app, go digital and say goodbye to guesswork for good.


Instant PD calculator

EyeDistance it's available for free on the App Store and can be used on iPad and iPhone


Measures your PD in a second


Based on the latest technologies


Accurate measurements


No use of accessories


Available on the App Store


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Blending experience with out-of-the-box thinking, we’re introducing EyeDistance, an unconventional digital tool that allows you to measure the pupillary distance in a matter of seconds. 
No contacts, accessories, or redundancy whatsoever.

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App with a vision

Technology at the premises of the eyewear industry.

As digitalisation is becoming the standard norm, the ambitious Belgian startup STS created the EyeDistance app which provides a useful digital tool for the eyewear industry.

STS, has the vision of simplifying the life of people using eyeglasses, enables the transformation of the eyewear industry supporting the market participants through the inevitable digital transition.


Not sure what is a PD?

The EyeDistance app calculates the pupillary distance.

Pupillary distance is the distance between the centre of each of your pupils. This distance does not change over time, except in the case of children.

The half pupillary distances are the distances between the centre of your face and the centre of each pupil.

The pupillary distance is essential for centring corrective lenses on corrective glasses.