Your 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. ... Sometimes it is a vague sense that something is wrong with their glasses.2017-12-26
What is the margin of error for pupillary distance?
The margin of error for pupillary distance is within 1mm. It is important to conduct the self-administered test correctly to get the best results.2021-11-24
How do I know if my PD is wrong?
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. In my practice, some patients will complain that they “just don't feel right”. Sometimes it is a vague sense that something is wrong with their glasses.2017-12-26
Does PD on glasses 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. If you do measure your own pupillary distance, it is recommended that you try several attempts to be sure you get a fairly accurate measurement.