How to Mark Progressive Lenses for Blocking before Edging

Sometimes the progressive markings wear off or they’re hard to see. This shows you how to correctly remark them to block them for edging. The same holds true if you want to double check the PD and segment height on a pair of finished lenses.

[@cutiebirdies]

thank you

[@designaids]

How can I mark or identify the width of the corridor from mid to all the way down to the reading area to draw the same window as they show on the catalogue. ) (
Or to put it another way, .. I doubt that I have been changed for wide corridor lens but actually they are ordinary narrow corridor,.. that is what mostly defined in catalogue or videos as wide reading field of view ... Just to be clear here I am not talking about length of corridor..
I did device a way, I wish I could share pics here .. by magnifying the fine net through the progressive lens and it will show the magnification according to the progression of the addition number, after drawing the outline on this progression I am able to get virtually the same curves ) ( but is it the right way to do it and challange the optician or the lens supplier?

[@kanfedentbrandsllc1610]

EXCELLENT work. UMF is awesome I use them all the time.

[@UseMyFrame]

I really appreciate that, thank you!

[@nadinestewart4698]

Thanks for the information. Would really appreciate you putting the link for the marker and the progressive identifier please

[@UseMyFrame]

Great, thank for watching Nadine!
Both are available from PSI, here is the direct link to the Progressive Mark Identifier: looktopsi.com/psi/product/progressive-lens-identifier/
Here's the link for the pen: looktopsi.com/psi/product/lens-marking-pen-staedtler/