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

If your single vision prescription is like the following one, you also need to fill in the prism information besides all other information like the example below. (Note: there there is no PD value in the prescription, but actually you need to fill in your PD value)

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 actually you need to fill in your PD value) For the sample 1, you just need fill in the corresponding values.For the 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.For the 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.

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. You need to fill in information like the example below. (Note: there isn’t PD in the prescription, but actually you need fill in your PD measurement)