Difference between revisions of Pupillary Distance
added tip for choosing frames |
get two numbers |
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Pupillary Distance (PD) is the distance between your pupil centers. This measurement is important when ordering glasses to make sure you are looking through the optical centers of your lenses. If you have glasses made by an [[optician]] they may take additional measurements, but those require the frame to be on your face, and standard values are used by online glasses suppliers for those measurements. This is fine for most people, but may be a source of discomfort for some. | Pupillary Distance (PD) is the distance between your pupil centers. This measurement is important when ordering glasses to make sure you are looking through the optical centers of your lenses. If you have glasses made by an [[optician]] they may take additional measurements, but those require the frame to be on your face, and standard values are used by online glasses suppliers for those measurements. This is fine for most people, but may be a source of discomfort for some. | ||
"don’t use the single digit PD, use the separate numbers for each eye measured to centre of bridge of nose, many people are not perfectly symmetric"<ref>https://community.endmyopia.org/t/just-encountered-jake-steiner-but-started-myopia-reversal-almost-2-years-ago/14954/4?</ref> | |||
==Near PD== | ==Near PD== | ||
Because your eyes [[converge]] to look at things close to you, your PD is going to be smaller when doing [[near work]] than for [[distance vision]]. If you are buying [[differentials]] or [[reading glasses]] your near PD should be used. | Because your eyes [[converge]] to look at things close to you, your PD is going to be smaller when doing [[near work]] than for [[distance vision]]. If you are buying [[differentials]] or [[reading glasses]] your near PD should be used. | ||