Measurement (in millimeters) of the distance between the pupils of your eyes
Pupillary Distance, Pupil Distance or PD. 1  If you're ordering lenses for a new frame, you will need to provide your MONO PD (monocular pupil distance). 2  Have your doctor include this on your prescription or have a local eye care professional measure this for you. To measure your Pupillary Distance (PD): 1  Place a millimeter ruler on the bridge of your nose. 2  Have a friend face you about arms length away. 3  Have your friend measure the distance between the center of your pupils (the black dots in the middle of your eyes). 4  Or you can do it yourself simply by looking in the mirror. Your Pupillary Distance, or PD for short, is the distance between the center of one pupil to the center of the other pupil. We use this measurement to prepare and process your specific prescription glasses order. Each pair of prescription glasses we prepare is specific to each individual’s PD. Your PD (pupillary distance) is the distance between the centre of your pupils, measured in millimetres. Your Optician will measure this during your sight test although it is unlikely to be written on your prescription. However, you can ask your optician for your pupil distance following your test. PD or pupillary distance refers to the distance in millimeters between the center of one pupil to the center of the other. Having a correct PD on your glasses prescription insures that you are looking through the ideal spot in your lenses. Pupillary distance (PD) is the measurement (in millimeters) of the distance between the pupils of your eyes. Pupillary distance is an important measurement used to determine the proper lens shape and alignment of your prescription correction to your line of vision. Without an accurate PD measurement, correcting vision can be difficult since lenses need to be aligned over the center of your pupil for proper clarity. PD, or pupillary distance, is the distance from the center of the pupil (the black spot in the eye) of one eye to the other. This measurement refines the positioning of your lenses within the frame you have chosen.
http://www.eyeglasslensdirect.com/Pupillary-Distance-s/248.htm http://www.39dollarglasses.com/help/How-to-order/Pupillary-Distance-(PD)-help/32-How-do-I-measure-my-Pupillary-Distance-(PD).html http://www.saltcityoptics.com/how-to-measure-your-pd http://www.eye-sale.com/pd https://www.eyebuydirect.com/learn/how-to-measure-your-pd http://www.aclens.com/What-Is-Pupillary-Distance-c160.html http://www.greateyeglasses.com/shop/prescr.php?classid=8
what is pupil distance in eyeglass prescription