Results 1 to 19 of 19

Thread: Difference between progressive and no-line bifocal

  1. #1
    OptiBoard Professional Leighlee's Avatar
    Join Date
    Apr 2008
    Location
    Georgia
    Occupation
    Dispensing Optician
    Posts
    102

    Difference between progressive and no-line bifocal

    Hi all!
    What is the difference between a "progressive" and a "no line bifocal"..no..I am not new at this, but I was having a discussion with another optician ( younger than me) who told me they were one in the same. I disagreed with him. Who is right? Both of us? Neither of us?
    Thanks!
    Leighlee

  2. #2
    Banned
    Join Date
    Jun 2000
    Location
    Only City in the World built over a Volcano
    Occupation
    Dispensing Optician
    Posts
    13,002
    Today, there isn't any. There used to be (and I don't think there still is) a blended bifocal where the power did not progress but the line was blended to the point of near invisibility. Was seldom used so it went away.

    chip

  3. #3
    OptiBoard Professional
    Join Date
    Apr 2006
    Location
    canada
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    138

    manufactuers didn't like it

    It was not so popular, but I personally like it, there is no line and you can read, it is a very good choice for someone doesn't need intermidiate but doesn't want the line; we are bring the round blended back and people seem to like it. the only problem is manufactuers can't charge you big bucks because it's only a bi-focal so they are not keen on it.

  4. #4
    Master OptiBoarder
    Join Date
    Sep 2006
    Location
    Kansas
    Occupation
    Dispensing Optician
    Posts
    2,203
    To add to Chip's reply. Some like or use the term "No-line MULTIFOCAL", which could have been simplyfied to no-line bifocal. I like the term because many consumers may not understand the term 'progressive'. And there really is no need for them to. You might as well call it whatever makes sense to the people that are buying it.

    Chip's right; A quick look in the lens cataloge revealed that the only blended bi-focals available any more are round segs.

  5. #5
    ATO Member OptiBoard Bronze Supporter HarryChiling's Avatar
    Join Date
    Apr 2005
    Location
    Nowhereville
    Occupation
    Other Eyecare-Related Field
    Posts
    7,590
    Blog Entries
    1
    Quote Originally Posted by chip anderson View Post
    Today, there isn't any. There used to be (and I don't think there still is) a blended bifocal where the power did not progress but the line was blended to the point of near invisibility. Was seldom used so it went away.

    chip
    I used one the other day it was from Sola and yup there is a difference. Three Rivers lab makes a TRO seg which is a blended bifocal, so it ain't going away.

  6. #6
    OptiBoard Professional Leighlee's Avatar
    Join Date
    Apr 2008
    Location
    Georgia
    Occupation
    Dispensing Optician
    Posts
    102
    Thanks to you all! I have recently come back to work as an optician after year of working as a tech for an MD. So I am having to stir up some old brain cells and get used to the newer lens products/designs. First thing I have noticed is there are WAY more progressive lenses/designs than there used to be when I was working as an optician. It was so much easier as far a choices went.

  7. #7
    OptiBoard Professional Leighlee's Avatar
    Join Date
    Apr 2008
    Location
    Georgia
    Occupation
    Dispensing Optician
    Posts
    102

    Confused

    Back 20 years ago, bifocal choices were: a progressive, flat top, executive, and round seg and then a separate blended (or no-line). But if the Blended no-line is no longer available then I can see why many opticians now call the progressive a no line... and it does make more sense to the patient that way. In my case, the younger optician ordered a 'no-line" bifocal, and I was the one who was to write up the order for the lab. So I went to him to find out what he really wanted me to order. It was an old term that I had not heard in many years myself. I am glad I did, for these days most opticians use 'progressive, or PAL"...right? I might have gotten a round seg?

  8. #8
    Master OptiBoarder
    Join Date
    Jul 2006
    Location
    Morgantown.WV
    Occupation
    Dispensing Optician
    Posts
    494
    I managed a montgomery ward optical for US Vision, 26 years ago, and the only progressive we sold, and we were forced to sell a ton of them if we wanted our bonus, was the younger EZ2VUE blended bifocal. I was so glad when I went to work for an independant OD, and was able to order whatever progressive I deemed fit for the patient.
    Speaking of Three Rivers, last week I was able to order, for an ENT doc, a comfort with a 40mm rd seg on top, by using their freeform technique. It is mimmicing the Overview lens from essilor, with comfort plus ultex bifocal on top, which I was last able to get for him about 10 years ago, before they discontinued it. I am looking forward to seeing how it works out.

  9. #9
    Always learning OptiBoard Bronze Supporter
    Join Date
    Jul 2002
    Location
    Wauwatosa Wi
    Occupation
    Dispensing Optician
    Posts
    3,369
    Quote Originally Posted by Leighlee View Post
    Hi all!
    What is the difference between a "progressive" and a "no line bifocal"..no..I am not new at this, but I was having a discussion with another optician ( younger than me) who told me they were one in the same. I disagreed with him. Who is right? Both of us? Neither of us?
    Thanks!
    Leighlee
    "Progressive Power Lenses" is the most common terminology, although in the US "Progressive Addition Lenses" seems to be more common, probably due to its friendlier sounding acronym (PAL). Neither term has caught on with the consumer, who seem to be stuck on blended, Varilux, and no-line bifocals, with some insisting that they have no-line trifocals, as if there were progressives that had either two or three focal distances.

    I feel that omnifocal would be the best term, although the marketing departments probably thought it was too gay, liberal, or god-like sounding.
    Robert Martellaro
    Roberts Optical Ltd.
    Wauwatosa Wi.
    www.roberts-optical.com
    ~~~~~~~~~~~~~~~~~~
    “Science is a way of trying not to fool yourself"
    -Richard Feynman
    ~~~~~~~~~~~
    A mime-free zone.

  10. #10
    Master OptiBoarder TLG's Avatar
    Join Date
    Feb 2007
    Location
    S. California
    Occupation
    Dispensing Optician
    Posts
    800
    Quote Originally Posted by Leighlee View Post
    ...there are WAY more progressive lenses/designs than there used to be when I was working as an optician. It was so much easier as far a choices went.
    Notice: Unabashed, self-serving post follows...

    Leighlee,
    If you haven't already, check out the TheLensGuru.com to help you get up to speed on today's available progressive lenses.

  11. #11
    Optical Clairvoyant OptiBoard Bronze Supporter Andrew Weiss's Avatar
    Join Date
    Apr 2004
    Location
    Raleigh, NC
    Occupation
    Dispensing Optician
    Posts
    1,377
    Quote Originally Posted by chip anderson View Post
    Today, there isn't any. There used to be (and I don't think there still is) a blended bifocal where the power did not progress but the line was blended to the point of near invisibility. Was seldom used so it went away.

    chip
    The Sola blended is still available. Every once in awhile someone comes in who's been wearing a blended and wants to continue. In my experience, most blended bifocal wearers do not adapt well to progressives.

    The Younger blended used to be called the "Younger bifocal." It was a great selling phrase: "Mrs White, wouldn't you like to try a Younger bifocal?"
    ;)
    Andrew

    "One must remember that at the end of the road, there is a path" --- Fortune Cookie

  12. #12
    Master OptiBoarder
    Join Date
    Sep 2006
    Location
    Kansas
    Occupation
    Dispensing Optician
    Posts
    2,203
    Quote Originally Posted by Andrew Weiss View Post
    The Sola blended is still available. Every once in awhile someone comes in who's been wearing a blended
    Is it a "flat top" or a round. A few mfgs have blended round. Including TRO and Ice-Tech which manufacturer them custom as needed. I just looked through the lens guide and found no flat blended BFs.

  13. #13
    Master OptiBoarder OptiBoard Gold Supporter DragonLensmanWV's Avatar
    Join Date
    Oct 2006
    Location
    The Greatest Nation
    Occupation
    Optical Retail
    Posts
    7,635
    Quote Originally Posted by MarcE View Post
    Is it a "flat top" or a round. A few mfgs have blended round. Including TRO and Ice-Tech which manufacturer them custom as needed. I just looked through the lens guide and found no flat blended BFs.
    They are round blended. Actually the EZ2Vue is a Coburn/Sola/Ao/Zeiss product that has a very narrow blend zone compared to the Younger Seamless.
    I don't think I've ever seen a blended FT.
    DragonlensmanWV N.A.O.L.
    "There is nothing patriotic about hating your government or pretending you can hate your government but love your country."

  14. #14
    Optical Clairvoyant OptiBoard Bronze Supporter Andrew Weiss's Avatar
    Join Date
    Apr 2004
    Location
    Raleigh, NC
    Occupation
    Dispensing Optician
    Posts
    1,377
    Quote Originally Posted by DragonLensmanWV View Post
    They are round blended. Actually the EZ2Vue is a Coburn/Sola/Ao/Zeiss product that has a very narrow blend zone compared to the Younger Seamless.
    I don't think I've ever seen a blended FT.
    Neither have I; I don't think they were ever made. Anyone actually seen one?

    Of course there is Essilor's Liberty -- a progressive/bifocal mash-up, but not really a blended.
    Andrew

    "One must remember that at the end of the road, there is a path" --- Fortune Cookie

  15. #15
    Master OptiBoarder
    Join Date
    Jul 2006
    Location
    Morgantown.WV
    Occupation
    Dispensing Optician
    Posts
    494
    I know it's different, but what about a smart seg? I remember it was a ft35, and something else besides, lol

  16. #16
    Banned
    Join Date
    Jun 2000
    Location
    Only City in the World built over a Volcano
    Occupation
    Dispensing Optician
    Posts
    13,002
    Smart seg was quite visible. Good lens but not invisible.

  17. #17
    Master OptiBoarder
    Join Date
    Jul 2006
    Location
    Morgantown.WV
    Occupation
    Dispensing Optician
    Posts
    494
    yes, I know, but I was curious, I forgot just what the smart segs intentions were, other than being a ft35. I know I never sold one, but years ago it was espoused as an alternative to trifocal distance, someway, but I forget how, since I never sold one. Now they aren't being made, I am pretty sure.

  18. #18
    Optician Extraordinaire
    Join Date
    Jun 2005
    Location
    Somewhere warm
    Occupation
    Dispensing Optician
    Posts
    2,942
    Quote Originally Posted by THE MEB View Post
    yes, I know, but I was curious, I forgot just what the smart segs intentions were, other than being a ft35. I know I never sold one, but years ago it was espoused as an alternative to trifocal distance, someway, but I forget how, since I never sold one. Now they aren't being made, I am pretty sure.
    I have a set of Smart Segs in a demo frame. They are easy to identify because they are 30 mm wide, slightly wider then standard bifocals. They were designed for bifocal wearers who needed an intermediate area but didn't want a standard trifocal. They are long gone. I sold a few but not many.

    Am I the only one who tries to educate many of my patients about progressives and bifocals? I tell people that progressives and bifocals are very different things and no-line bifocals aren't really bifocals (except for blended bifocals).

    I draw pictures of the lenses on paper and explain how they both work and the benefits and drawbacks of both. Most people seem receptive to the information. I also have lenses in demo frames to help people.

  19. #19
    Master OptiBoarder
    Join Date
    Jul 2006
    Location
    Morgantown.WV
    Occupation
    Dispensing Optician
    Posts
    494
    zeiss has a very good counter card that we show patients the differences in the designs and usable area between progressives, intermediate progressive type lenses(computer glasses) and ft bifocals. It doesn't show a design of a blended, but that is fine because we sell about one a year of them.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Progressive vs Bifocal question.
    By tom moxa in forum Progressive Lens Discussion Forum
    Replies: 33
    Last Post: 06-27-2007, 07:27 PM
  2. Progressive or Bifocal?
    By EagleEye123 in forum Progressive Lens Discussion Forum
    Replies: 7
    Last Post: 01-22-2007, 05:19 PM
  3. Taking Progressive or Bifocal Seg Heights
    By Lyrix76 in forum Ophthalmic Optics
    Replies: 21
    Last Post: 07-29-2006, 01:50 AM
  4. Advice re: Progressive Lens vs No Line Bifocal
    By smtomkins in forum Progressive Lens Discussion Forum
    Replies: 3
    Last Post: 04-13-2006, 05:56 AM
  5. Hi Index single line bifocal transition lenses
    By Tobylima in forum General Optics and Eyecare Discussion Forum
    Replies: 2
    Last Post: 10-14-2005, 05:45 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
OptiBoard is proudly sponsored by:
FEA Industries, Younger Optics, Carl Zeiss Vision, Vision Systems, Inc. and Chemistrie Eyewear