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Tag: bifocals

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  1. Bifocal prismatic effect

    Started by ge2007, 02-15-2012 02:38 PM
    2 Pages
    1 2
    • Replies: 46
    • Views: 1,250,337
    Last Post: 07-02-2023 01:42 PM
    by Prentice Pro 9000  Go to last post
    • Replies: 8
    • Views: 20,443
    Last Post: 08-28-2018 03:05 PM
    by Don Gilman  Go to last post
  2. Does D segment or round segment produce more jump?

    Started by Off, 01-08-2017 05:56 AM
    bifocals, jump, prismatic, round, segment
    • Replies: 2
    • Views: 4,911
    Last Post: 01-08-2017 03:11 PM
    by Steve Machol  Go to last post
    • Replies: 1
    • Views: 4,668
    Last Post: 01-08-2017 03:10 PM
    by Steve Machol  Go to last post
    • Replies: 9
    • Views: 10,444
    Last Post: 06-22-2009 06:39 PM
    by RT  Go to last post
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