Sep 24, 2024 · Pupillary distance (PD) measures the space between pupils in millimeters. It’s used when fitting prescription eyewear. An eye doctor or optician takes your PD when getting new prescription eyewear. If you’re ordering a new pair of glasses online, you may need to measure your pupillary distance yourself.

Sep 10, 2024 · Pupillary distance (PD) is the measurement of the distance between your eyes’ pupils, expressed in millimeters. Your optician or eye doctor can measure your PD at your eye exam with an instrument called a pupillometer. Sometimes your PD is included on your prescription, but not always.

Sep 18, 2023 · Using your left eye alone, line up the 0 mark of the millimeter scale underneath your right eye. You want the ruler’s 0 mark to line up with the center of your right pupil (imagine a vertical line separating the pupil into left and right halves and line the 0 mark up with it).

May 19, 2022 · A ‘single’ pupillary distance number is the distance in millimeters between one eye’s pupil to the other eye’s pupil. A ‘dual’ pupillary distance number is the distance in millimeters from each eye’s pupil to the center of your nose.

May 29, 2024 · Pupillary distance, also called interpupillary distance or PD, is a measurement of the distance between your pupils. Pupils are the dark centers of your eyes that widen to let in light or...

Aug 23, 2019 · Here are the basic steps for measuring your PD: Stand in front of a mirror (about 12 inches away). Hold a millimeter ruler horizontally, just above your eyes and flat against your eyebrows. Close your right eye. With your left eye, align the ruler’s zero mark to the center of the pupil of your left eye.

Dual PD, or monocular PD, consists of 2 numbers and is the distance between the centers of each pupil to the bridge of the nose. Dual PD is usually written as 32/30. The first number refers to the right eye (OD), and the second number refers to the left eye (OS).

Jun 2, 2020 · Close your right eye and align the 0 millimeter mark to the center of your left pupil. Look straight ahead and then close your left eye and open the right eye. The millimeter line that lines up to the center of your right pupil is your PD.

SINGLE PD is the pupillary distance between the center of one pupil to the other, which can be a distance PD or near PD. Distance PD can be used to order any type of prescription glasses except reading glasses. Read below to learn how to calculate near PD for reading glasses.

Jan 3, 2024 · Discover the importance of pupillary distance (PD) for comfortable eyewear & clear vision. This guide will help you measure your PD accurately at home & choose the right glasses using PD measurements – single or dual.