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Thread: Issue with Poly Trans xtractive FT28 Delaminating

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    Issue with Poly Trans xtractive FT28 Delaminating

    I've had a few of the Poly Transitions Xtractive FT28 delaminate in nylor frames and wondering if anyone else has had similar issues? Should I be adjusting the groove position a little to avoid being centered on the seam?
    This just happened on a 1 month old job and the patient takes really good care of his specs. Lens liner isnt too tight either.

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    Quote Originally Posted by Alex Camblor View Post
    I've had a few of the Poly Transitions Xtractive FT28 delaminate in nylor frames and wondering if anyone else has had similar issues? Should I be adjusting the groove position a little to avoid being centered on the seam?
    This just happened on a 1 month old job and the patient takes really good care of his specs. Lens liner isnt too tight either.
    I've been having the same issues for months... Have warrantied way too many... had another come back today that's been warrantied before and need it again. Can't seem to get any answers from the surfacing labs (several). I'm frustrated enough that I've started to steer people from poly trans FT's in nylor whenever possible. I do not believe it has anything to do with groove position.

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    I wonder if I need to make the groove a little wider so the liner doesn’t create as much of a wedging effect.

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    Quote Originally Posted by Alex Camblor View Post
    I wonder if I need to make the groove a little wider so the liner doesn’t create as much of a wedging effect.
    Don't take my results as gospel, but, I've tried it. Did not fix the problem... I've had plenty with no problem but way too many WITH problems. Hell, I had one customer who, for something like 3 sets of lenses in a row would delaminate AS I mounted the lenses. These were in a nice Charmant Titanium frame. Luckily, the customer was a good sport but, damn, that's frustrating. We ended up switching to a full frame and I think I switched to Trivex. What a pain... But, I think I got her happy and haven't seen her back.

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    And, unless I'm mistaken, Poly Trans *extra-active* is not available in FT28. My comments are regarding standard transitions in FT28 poly.

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    Most likely, it’s the ReacTint from VisionEase. We have not had any issues with nylor, nor drills, with ST Poly.
    I remember having issues about 13 years ago with them delaminating in even zyls, but VisionEase addressed the issues, and I have not had issues since.
    BTW, groove settings in my lab is 33%, .5 deep, .6 wide, on all edgers, with the exception of ICBerlin, OVVO, Lindberg, etc.
    I bend light. That is what I do.

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    Quote Originally Posted by Quig View Post
    And, unless I'm mistaken, Poly Trans *extra-active* is not available in FT28. My comments are regarding standard transitions in FT28 poly.
    I believe the lens is made by Younger and they call it poly but it’s a composite poly-trivex lens.

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    Quote Originally Posted by Alex Camblor View Post
    I believe the lens is made by Younger and they call it poly but it’s a composite poly-trivex lens.
    I think this is correct. And, after replying last I realized I had just put new lenses in a silhouette drill mount that had the same problem but they were pretty old. Nylors seem to be the worst, by a lot, but the problem is not limited to them. If you look at the edge of the lens after edging with a flat (rimless) or grooved lens you can easily see the laminate. It seems to me it's the photochromic layer that is causing the problems but I don't know for sure...

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    Master OptiBoarder CCGREEN's Avatar
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    Hoya's proper name for their photochromic lens is Sensity.
    Essilor uses the name Transitions for their photochromic lenses.
    I find though most people tend to call ALL photochromic lenses Transitions.
    So are you using Hoya lenses or Essilor lenses? Now narrow it down to SV FT or progressive.

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    Master OptiBoarder optical24/7's Avatar
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    For what it's worth..

    https://www.optiboard.com/forums/sho...-trans-bonding

    If your Nylor's are delaminating try moving the groove back from the front.

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    OptiBoard Apprentice Optical Roy's Avatar
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    I have had this issue as well, you can actually look at the edge of the lens and see the difference between the front and back side, it's amazing, some lens are too narrow to move the groove back, I have started using Trivex as much as possible on any grooved lens.
    Roy W. Jackson, Sr. ABOC

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    Quote Originally Posted by CCGREEN View Post
    Hoya's proper name for their photochromic lens is Sensity.
    Essilor uses the name Transitions for their photochromic lenses.
    I find though most people tend to call ALL photochromic lenses Transitions.
    So are you using Hoya lenses or Essilor lenses? Now narrow it down to SV FT or progressive.
    Transitions is only for transitions products. Up here in the north poly ft is not a transition product but actually visionease's lifeRx.

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    I have seen these issues with life rx, poly trans extra active in FT has only been out for a little more than a year.

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    Quote Originally Posted by Optical Roy View Post
    I have had this issue as well, you can actually look at the edge of the lens and see the difference between the front and back side, it's amazing, some lens are too narrow to move the groove back, I have started using Trivex as much as possible on any grooved lens.
    I suppose I could specify a thicker edge to reposition the groove but then it starts affecting the weight and aesthetics of a nylor frame. Im going to try widening the groove a bit or maybe using a smaller diameter liner.

    I'm not aware of any lab that makes Trans XTRA FT28's in materials other than CR39 or Poly. The XTRActive is really popular here in Hawaii, alot of our patients cant afford multiple pairs of glasses and they like having their glasses darken when they are behind a windshield.

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    Quote Originally Posted by Alex Camblor View Post
    I believe the lens is made by Younger and they call it poly but it’s a composite poly-trivex lens.
    Yes is a special younger product in ft28 link

    http://www.youngeroptics.com/Younger...ws.aspx#News71

    the tansitions trivex layer would be thin on the front so I don't know about delamination with groove.

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    OptiBoard Apprentice Optical Roy's Avatar
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    There are no other Extra active materiels other than poly and Cr-39, hope that changes in the future.
    Roy W. Jackson, Sr. ABOC

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    Quote Originally Posted by dima View Post
    Yes is a special younger product in ft28 link

    http://www.youngeroptics.com/Younger...ws.aspx#News71

    the tansitions trivex layer would be thin on the front so I don't know about delamination with groove.
    The Trivex layer is about 1mm thick, with a 2mm edge that puts the seam right in the middle of the groove. I'm going to contact Younger and see what they say about this, it sounds like its a common problem that needs to be addressed.

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    Stop putting the lens in grooved rimless...problem solved.

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    Quote Originally Posted by Alex Camblor View Post
    The Trivex layer is about 1mm thick, with a 2mm edge that puts the seam right in the middle of the groove. I'm going to contact Younger and see what they say about this, it sounds like its a common problem that needs to be addressed.
    It's thinner than 1mm as per my link above.

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    Quote Originally Posted by optical24/7 View Post
    It's thinner than 1mm as per my link above.
    Your link refers to the regular Poly Transitions FT28. Im talking about the Poly Transition XTRActive FT28, which I have an edged lens in front of me. The Transitions layer is 1mm thick on a 2.2mm thick lens.

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    wow I've actually never had this problem, with Life RX sure but I stopped using that once these came out. I would contact younger, I guess Ive been lucky

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    Quote Originally Posted by CME4SPECS View Post
    Stop putting the lens in grooved rimless...problem solved.
    Although a excellent move, I know first hand that does not solve the problem.
    I had the same problem around 15 years ago, I quit using Life Rx lenses back then. Problem solved.
    But last year I had one lady using a metal Charmant frame and I had to replace her delamanting transitions 3 times in nine months.
    I feel that the stress points between frame and lens is a contributing factor.

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    Quote Originally Posted by CCGREEN View Post
    Although a excellent move, I know first hand that does not solve the problem.
    I had the same problem around 15 years ago, I quit using Life Rx lenses back then. Problem solved.
    But last year I had one lady using a metal Charmant frame and I had to replace her delamanting transitions 3 times in nine months.
    I feel that the stress points between frame and lens is a contributing factor.
    Quit using the poly trans then...problem solved.

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    Quote Originally Posted by CME4SPECS View Post
    Quit using the poly trans then...problem solved.

    Sorry, I didn't say anything about poly.
    That belongs to the first post of the thread.

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    OH, sorry this thread was about poly trans xtra-active ft.

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