How To Fill Out Prescription

OD stands for "oculus dexter" which is Latin for "right eye".

They mean the same thing: the strength of your prescription. If you're nearsighted you will have a minus (-) before your values, and if you’re farsighted you will have a plus (+).

 

This is only for people with astigmatism. The axis is a number between 0 and 180 and determines the orientation of the Cylinder (CYL).

 

OS stands for "oculus sinister" which is Latin for “left eye”.

 

This is for people with astigmatism. This is when one part of the eye needs more correction than the rest. The Cylinder value is written with a minus (-) sign.

 

You can select the default settings of 61 for women and 64 for men if you have an average or low prescription. If you have a strong prescription (or if you want to know your exact PD), please measure your PD. How to measure your PD?

Single Vision Prescription

If your prescription is like the following one, you need first to choose a single vision type, and then fill in the correct information like the example below.

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.
For sample 2, you need to change +225 to +2.25, -150 to -1.50, -125 to -1.25, and -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.

Reading 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)

Other Information You Might Use When Filling In Prescription

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.