Measure Pupillary Distance Online App. Pupillary distance (or pd) refers to the distance between your two pupils. This measure is important so the focal points of the lenses can be positioned right in front of your pupils.
The pupillary distance app works best on a pc / mac. Mira comes with a millimetre accuracy, which makes this method the most accurate online method for measuring pd. Guarantee an accurate pupillary distance measurement with eyeque’s pdcheck app:
Pd is sometimes written on your prescription by your doctor.
Pupillary distance (or pd) refers to the distance between your two pupils. Pupillary distance (pd) is the distance measured in millimeters between the centers of the pupils of the eyes. We'll need to know your pd to ensure your new lenses will be a perfect fit. Look straight at the camera as taking a selfie, tap the button and see your pd.