PD Ruler, Pupil Distance rulers, Optician Choice, Essential Tool for On-line Order Eyewear

If your optician doesn't put your PDs on your prescription, and they will do their utmost not to, then a photograph of this ruler taken by someone else from 6 metres for distance PD, and a selfie for Near PD, gives a much more accurate result than the camera Apps. The latter add arbitrary values to a selfie with a credit card as reference and overestimate by 2mm in my case. This ruler worked perfectly.

Poor quality and not clear on return policy as when checked return policy it said most items are fully refundable. But due to poor quality of item when received I only then found out it was none returnable/refundable with the seller. Only after I complained to amazon about this and the fact refund policy was misleading and not stated clearly at all, was I then refunded by amazon themselves. Thankyou amazon for the fab customer service. Very dissaponted with the seller. Will not purchase anything from them again.

This is so easy to use and being properly made and printed out, you cannot go wrong. Better than homemade like I have used before...

Does exactly what it is supposed to do, if you don't have your PD and can't be hasstled to go to the opticians to get one, this is perfect. You need someone to read it. Instructions are one google search away.