How does pd affect glasses

Our thoughts and opinions are our own. Pupillary distance is the measurement of the distance from the center of one pupil to the other. Finding this measurement simple but also very crucial when shopping for new prescription glasses online. A correct PD measurement ensures that the lenses optical center is correctly positioned over your pupil. In instances like this, a dual PD measurement will typically result in a better fitting lens due to each eye having its exact pupillary distance.

This puts the lens optical center in the correct position for each eye. Because of this, we have created a simple way to use your smartphone as a PD ruler. Assuming you scale the ruler correctly, this method should be just as accurate as using an actual ruler. If you think you may benefit from a dual PD measurement , you can repeat the steps above only this time using our dual PD ruler. Our dual PD ruler allows you to center it down the middle of your nose making it easy to measure the specific pupillary distances for both your left and right pupils.

The process is nearly identical to measuring for a single PD, and you can follow the 5 simple steps on our guide to help you get started! If all else fails, you can use your old or current glasses to measure your pupillary distance. Your PD is an important part of your prescription because it shows exactly which part of the lens you look through.

The numbers on the inside of the temple arms of some frames show the measurements for the frame itself. Your PD number should be written on your eyeglass prescription in the PD section. Your PD should be exact. Your vision is centered on a small section of the lenses, so a PD number is needed to shape the lenses to perfectly suit your needs.

Your PD has no effect on the size of your eyeglass frame. Have more questions? Contact us by email, live chat or call Vision insurance can significantly reduce the cost of your prescription glasses, sunglasses, or contact lenses — it may even cover your entire order.

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It is required to craft the focal point in the eyeglasses which lead to clear vision. Everyone has a unique pupillary distance. Whereas the pupillary distance of kids lies between 43mm to 58 mm. Where every millimetre counts, a change or defect of even a single millimetre may cause creating eyeglasses with wrong focal points or the center for the prescription glasses.

Measuring pupillary distance is pretty easy, either you can do it yourself or can ask someone to help. Take a ruler having millimetre marking. Hold the ruler starting from the center of one eye i. Mark the point in the ruler where the pupil of the eye lies. This distance between the pupils of both eyes is your pupillary distance for spectacles frames.