You need the values that have been entered on your prescription after an eye test. If you are not sure what these are, use the example image of a prescription as a guide when entering your values. There we show you exactly which values have to be entered in which fields.
It is possible that your pupillary distance (PD) is not written on your prescription. This value is very important for determining the centre of your eyes and thus for perfect vision. To find out your pupillary distance, you can find a PDF document with all the important information here.