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Is your PD written on your glasses?
You usually can’t find your PD number written on your eyeglasses. Your PD number should be written on your eyeglass prescription in the PD section.
What happens if PD is wrong on glasses?
If your pupil distance does not match where the centers of your pupils are, your vision can be affected– Like wearing someone else’s glasses! The wrong PD can induce eye strain, fatigue, headaches and blurry vision. If you have a high prescription and the wrong PD these symptoms are often much worse.
What is the average PD for a woman?
The average PD measurements for women is 62mm and for men 64mm.
Does pupillary distance have to be exact?
The pupillary distance measurement does not have to be 100% precise to be useful, as it can tolerate a fairly small error range. Average pupillary distance for an adult is between 54-68mm, with acceptable measurement deviations generally falling in between 48mm and 73mm.
What if PD is off by 1mm?
A pd difference of 1mm is not going to cause trouble, in real terms 1mm is a variance of . 5mm to each eye, and would not be noticable. if you wear glasses with incorrect pupillary distance, you will occur headaches, eye strain and dizziness.
Is 70 a normal PD for glasses?
A general rule of thumb is that most adults have a PD from 55 to 65 while most children have a PD from 42 to 54.