1.
2.
The PRP value of Essilor progressive lenses is 4mm. This may vary depending on the manufacturer of the lenses.
To block the lens, refer to the section .Centering a lens > Blocking a lens (p.57)
b. Centering a lens using manufacturer markings
Prerequisite:
The markings must be clear
The lens must at least have the following markings:
Far vision mark
Centering marks
The lens is centered and ready to be blocked.>
To Next Page
Loading...
Need help?
General
