![]() ![]() ![]() For most people, the difference between Far PD and Near PD is about 2-3mm. For reading glasses, doctors measure your "Near PD" or "59" in the example.Īlways enter your "Far PD" for distance vision eyeglasses and enter your "Near PD" for your reading glasses only. Your PD is usually measured for distance vision, which is "Far PD", or "62" in this example. ▪ Sometimes PD is written as "62/59" or they are labeled "Far" and "Near". A Monocular OD is written as two numbers, for example, "32/30", and "32" represents the PD for the right eye and "30" for the left eye. ▪ PD (OD), means the Monocular PD for the right eye, and PD (OS), means the Monocular PD for the left eye. ▪ PD (OU), written as "64", means Binocular PD which is for both eyes. For those requiring progressive lenses, we strongly recommend you get this information from your optician to ensure the accuracy of your glasses. Pupillary distance ( PD ), more correctly known as interpupillary distance ( IPD) is the distance in millimeters between the centers of each pupil. Step4. You also need to measure the distance from two pupils to the center of the nose respectively to make sure that you have two PDs(OD & OS).ġ. Monocular PD can be measured during an eye test. Step3. Close your left eye and note the reading directly over your right pupil. Step2. Close your right eye and align the 0 mm over the center of your left pupil. Step1. Position yourself arm’s length from your friend or yourself approximately 8 inches (20cm) away from a mirror. Please measure your PD 2-3 times to ensure you get accurate results. Might be a bit different compared to practical measurements. Note: The average PD is between 54 and 78mm. Recommend to use a physical PD ruler or consult your ophthalmologist.ĭownload Zeelool’s PD ruler Note: Please Printed on A4. Use the PD ruler at the bottom of the page. Pupils are the dark centers of your eyes that widen to let in light. Print this page on A4 (without scaling, at 100%. Pupillary distance, also called interpupillary distance or PD, is a measurement of the distance between your pupils. However, this range varies from person to person according to their gender, and age. This can be known through the measured pupil distance (PD). The PD is needed to manufacture your eyeglasses because it determines the exact optical center of the lens, which is the point where you look through the lens. The average pupillary distance of an adult is 63mm. The focal point of the eyeglass lens needs to be adjusted to the center of the users pupil. Pupillary Distance (PD) is the distance, in millimeters, between the center of one pupil to the center of the other. ![]()
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