Your pupil distance is the distance between your pupils, in millimeters. It is sometimes written as a "binocular" measurement like 61, and sometimes written as a "monocular" measurement, like 31/30.

Essilor is the world leader in optical lenses. Almost all lenses made by Eyeglasses.com are made by Essilor, including Varilux, Crizal, Transitions and other top brands.

It is illegal for any optical professional to withhold your pupillary distance measurement. If your doctor refuses, or insists on charging you extra, you should report the doctor to your state's Attorney General

Yes, It is very easy. You can start by asking for your prescription and pupil distance measurement during your eye exam. Federal law requires that your doctor give it to you. Then, follow the easy step by step instructions at Eyeglasses.com to learn how to add lenses your frame.

There are several ways you could do this. You can fill out the online form, send it by fax, upload an image to our website, email it to us, or even call our customer service department and read it to us. You can e-mail a photo from your device, upload a copy to your account, or you may fax it to us: 888-896-3866. If you are unable, you can read it to us by phone and we can enter it for you! Fun fact: the date is irrelevant to us, we want you to get regular eye exams for good eye health, but you can use the prescription that works best for you, despite it may have an “expiration date.”

There are several ways to get your pupil distance measurement: 1) Call your doctor or optician and ask for it (Federal law requires that they give it to you), 2) send us an old pair of prescription glasses, we can measure it from those, or 3) use our online tools to measure your PD.

In our Lens Selector tool, there is a lot of information. However, if you are still confused, please call our customer service department, and our licensed opticians can discuss the best options for your needs.