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Providence Optics is the solution for all your eyeglass needs!
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We believing in informing our consumers with the most up-to-date information available.

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Ordering Process Tab to learn about how your order is processed by Providence Optics
Measure Pupil Distance Tab to learn how to properly measure your pupil distance (PD) to ensure a proper manufacturing of your prescription lenses
Lenses Tab to learn about the brands of lenses we use, the different types of lens materials, sunglasses, and lens coatings
About Us Tab to learn about our team and our mission to provide you great quality eyewear

Ordering Process

Learn about how your order is processed by Providence Optics

Pupillary Distance Measurement – Ensuring the Best Fit

Pupillary Distance Measurement, also known as PD, is an extremely important eye measurement that helps to ensure the best fit for your prescription lenses. The PD is the distance between the pupils and is measured in millimeters.

Having the correct pupil distance measurement will help your eye glass laboratory when making your lenses. If frames and lenses are not properly aligned with the center of your pupils, there is a potential for eye discomfort including eye strain and headaches.

Usually your eye doctor or optometrist will provide a PD measurement with your prescription; however, in certain situations, a doctor may not give the pupil distance measurement since it is not actually part of the eye testing examination process. Rather it is a measurement needed by the provider that creates your lenses and frames.

In the event you did not receive the measurement of your pupillary distance, it is easy for a friend or family member to help you obtain the needed measurement. If you do not have someone available to assist you, then you may also stand in front of a mirror using the following steps to take the measurement yourself.

Three Steps for Measuring Pupillary Distance

1)      Proper Position – Stand or sit directly in front of the person helping you or eight inches from a mirror if taking measurement by yourself. Steadily focus your eyes in front of you as if looking off into the distance.

2)      Line Up Ruler Correctly – Have your friend or family member use a ruler with millimeter markings, and hold the ruler just below your eyes right where the bottom of your pupil meets your eye color. The ruler may rest on the bridge of your nose. Make sure that the zero (0) on the ruler is lined up directly with the pupil’s center.

3)      Calculate Measurement – Measure the distance from the center of the left pupil to the center of the right pupil. Repeat the measurement a few times for consistency and accuracy.

If you need to wear glasses while measuring the PD on your own, use a marker or highlighter to mark each lens over the center of each pupil. Once marked, you can then calculate and record the distance between the two marks.

Typical Pupil Distance Measurements

If your measurement is outside the following typical ranges when measuring the PD, then re-measure to ensure accuracy. The average PD measurement for adults is 62mm. Most adult pupillary distance measurements fall somewhere between 54mm and 74mm. The pupil distance for the majority of children is between 41mm and 55mm.

Already have a Pupillary Distance Measurement from the Doctor?

On some prescriptions, the eye doctor or optometrist will record two sets of numbers, such as 33/31. This calculation is slightly different than the self-measurement method in that the doctor is recording the distance from the center of each pupil to the center of the nose. By adding these two values together, you will get the single pupillary distance measurement required for filling the eyeglass prescription (33+31=64mm).

Lenses

Learn about the brands of lenses we use, the different types of lens materials, sunglasses, and lens coating.

Our Lens Brands

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About Us

learn about our team and our mission to provide you great quality eyewear

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