Guide to measuring pupillary distance

DNP, or naso-pupillary distance, is a crucial measurement for determining the distance between the pupils and the nose.

It is equally important to measure PD, or pupillary distance, to ensure even greater accuracy.

These are crucial measurements in the production of prescription glasses, as each person has a unique pupillary distance, which makes these measurements essential to ensure that the lenses are customized according to your pupillary distance, providing clear and accurate vision.

If your prescription already contains this information, this simplifies the process and you can order your glasses, even online.

There are also some simple ways to measure your pupillary distance at home:

Ruler and mirror

Hold a centimeter ruler and look in the mirror.
Close your left eye and align the tip of the ruler with the pupil of your right eye.
Keeping the ruler straight, close your right eye and open your left.
The number on the ruler that is aligned with the pupil of your left eye is your pupillary distance.

Measurement Apps

There are mobile apps available that use your phone's camera to measure pupillary distance. Just search for "Pupillary distance measurement", download the app and follow the instructions to take the measurement.

Play Store Apple store

It is important to note that these methods provide a rough estimate of your pupillary distance.
For a 100% accurate measurement, it is recommended to consult a qualified professional at your trusted optician.

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