Entering Your Prescription Information
From the prescription your eye doctor gave you, enter the Sphere, Cylinder, Axis, Pupil Distance and ADD (optional) values on the product page. These values must be entered correctly. For example, a Sphere value of -.075 is not the same as +.075. The Pupil Distance (PD) measurement may not be shown on your prescription, but it is necessary to make your glasses. Call your eye doctor for this value. They should have it in their records.
If you enter incorrect prescription information such as an inaccurate pupillary distance measurement, you may not be able to see well with your new glasses. We cannot be responsible for mistakes in prescription information provided by you or your doctor. We guarantee that your prescription safety glasses will be made exactly to the specifications that you provide.
If you have any questions about entering this information, fill-out as much as you can, place the order, then email your prescription to us at firstname.lastname@example.org along with your order number. We will fill-out the rest of the information and check the order for accuracy.
PUPIL DISTANCE Measurement
We need your PD (Pupil Distance) measurement to accurately make your prescription glasses.
If you have two pupil distance (PD) numbers (Left PD and Right PD) on your prescription, you must add the two numbers together and enter that number in the first PD Binocular field. This is required. You can then enter the left and right PD numbers in the second PD Monocular field.
You can call your eye doctor for this measurement, or you can measure your own PD using a mirror and a millimeter ruler. Your prescription does not typically show the pupil distance measurement.
To measure the PD yourself, place the ruler flat against your forehead and with your right eye closed, line up the zero on the ruler with the center of your left pupil.
With your left eye closed, take a reading of the ruler at the center of your right pupil.
If you have difficulty seeing what you are doing, then use a magnifying mirror. If it is easier, line up the outside of the iris of one eye with the inside of the iris of the other eye and use that measurement.