PD is normally measured by the optician, from center of one pupil to the center of the other. Measured with a traditional ruler. Average PD for a man is 64mm, for a woman 62mm.

You may buy one pair of progressive glasses, another pair of reading- or computer glasses or whatever combination. If you then need a pair of cool sunglasses in addition, you will get the pair with the lowest price for free. Different Panto models or colors from one day/situation/outfit to another, is for sure something you will love! As well as an extra pair - just in case 😃