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Your pupillary distance is very specific to you so a PD measuring more than a millimeter (mm) off can result in significant adverse side effects. A properly measured PD will ensure the optical center of your lens aligns with the center of each of your pupils which ensures clear, non-distorted vision.


👀What is ‘pupillary distance’? Your pupillary distance (PD) is the distance between the centers of your pupils. Your PD is an important part of your prescription because it shows exactly which part of the lens you look through. 📏How do I measure my PD without a ruler? There are various mobile apps that can measure your PD using your ...


What is Pupillary Distance? Pupillary distance (PD) measures the distance between the centers of your pupils. This measurement is used to determine where you look through the lens of your glasses and should be as accurate as possible. The average adult’s PD is between 54-74 mm; kids' are between 43-58 mm. Your eye doctor will usually measure ...


If using a mirror, try to look into the distance as you measure. If a friend is taking your measurements, try to look past them into the distance to avoid the result being too narrow. Hold the ruler against the bridge of your nose and line up the middle of your left pupil with the 0 line of the ruler. You can now measure the distance between ...


Measure the distance from your right to your left pupil. The number that lines up with your left pupil is your PD. Jot it down. Try it a couple times to make sure your measurement is accurate. Step Three. Have your friend repeat the process on your left eye by measuring the distance from your left pupil to your right.


Your inter-pupillary distance (PD) is the distance between your pupils, measured in millimeters. Eye doctors always measure this distance to ensure an accurate fit when they write prescriptions for eyeglasses. The average adult PD is 62 millimeters, though the normal range for most individuals is between 54 and 74 millimeters.


How to measure pupillary distance Your eye doctor typically measures PD as part of your eye exam using a pupillary distance ruler or a corneal reflex pupillometer, calibrated specifically to each eye.. Let’s say you have your eyeglass prescription and want to buy a stylish pair of wire frame glasses online.But you need your PD measurement.


Measuring a friend’s pupillary distance To measure someone else’s PD, have them look at something around 20 feet away from them with both their eyes open. Using a ruler, line up the 0mm mark with the centre of one pupil, then measure to the centre of the other.


Measure your pupillary distance (PD) PD is the distance between your pupils, and it's used to help center a prescription correctly in your frames. Before using our PD tool, review the steps below. 1. Wearing glasses? Take them off for your photo.


PD (PUPILLARY DISTANCE): Distance in millimeters (mm) between the centers of the pupils in each eye. This measurement is used to make prescription glasses. Position yourself arm’s length from your friend or yourself approximately 8 inches (20cm) away from a mirror. Close your right eye and note the reading directly over your left pupil. That ...