On a standard progressive, is the reading area decentered 2mm O.U. or 2.5mm O.U.?
Many thanks,
Golfnorth
On a standard progressive, is the reading area decentered 2mm O.U. or 2.5mm O.U.?
Many thanks,
Golfnorth
Science is a way of trying not to fool yourself. - Richard P. Feynman
Experience is the hardest teacher. She gives the test before the lesson.
There are currently 1 users browsing this thread. (0 members and 1 guests)
Bookmarks