Yes, we will need your pupillary distance but if you do not have it, you can follow the below instructions, or you can send us a photo like this the one attached, with standard sized card, and will work it out for you.
- Wear your glasses. (Or any glasses if you don't have your own. Even just try on demo glasses at the mall if you are that bold.)
- Have a felt-tip non-permanent marker handy.
- Focus on a single object in the far distance (anything farther than 20 feet works, but farther is better).
- Raise the marker to your right lens and precisely put a dot on it directly over the distant object.
- Repeat for your left eye. If done correctly, with both eyes open the two dots should overlap into a single dot over the distant object. If not repeat making the markings until they do form a single dot.
- Measure the distance between the two dots on your lenses with a millimeter ruler.
- That's your distance PD.
- If you need a near PD for reading or computer glasses, just do the same procedure but focus instead on the object you will be looking at, either reading material or computer monitor.