How to fill prescription?
Pupillary Distance (PD) is the distance, in millimeters, between the center of one pupil to the center of the other. The PD is needed to manufacture your eyeglasses because it determines the exact optical center of the lens, which is the point where you look through the lens.
Single Vision Prescription
It’s likely you have one of the following face shapes: Oval, square, round, heart, or diamond. By taking a peek in the mirror at your facial features, you can determine your face shape. Once you know, you’ll be able to answer the age-old question: Which glasses look good on me?
Progressive Prescription
If your prescription is like the following ones, you need to fill in information like the example below. (Note: there is no PD value in the prescription, but you need to fill in your PD value) How to measure your PD?
Sample 1, you just need to fill in the corresponding values.
Sample 2, you need to change +225 to +2.25, -150 to -1.50, -125 to -1.25, -50 to -0.50, and then fill in the corresponding values.
Sample 3, you need to use Near O.D. +0.75-Distance O.D.-1.50 or use Near O.S.+1.00- Distance O.S. -1.25 to get the ADD +2.25 value and then fill in the ADD blank.
PS: the three different prescriptions get the same prescription lenses.
Other Important Information
OD stands for “oculus dexter,” or right eye.
OS stands for “oculus sinister,” or left eye.
if there is PL or DS in your prescription, it means the value should be 0.
The term PL (Plano) means there is no spherical correction in this eye.
DS stands for “diopter sphere”, which means there is no astigmatism correction for this eye.
You need to fill in information like the example below. (Note: there isn’t PD in the prescription, but you need fill in your PD measurement)