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  1. Replies
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    I would say most, if not all of the consumer...

    I would say most, if not all of the consumer related threads you might be referring to are about the once in a blue moon, Friday the 13th patients. If you are so blessed to not have experienced these...
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    Yes for jobs that are not plano. The minimum...

    Yes for jobs that are not plano. The minimum blanks size for a plano is equal to the ED+2mm. Your software might not include this exception. This is why we should work to understand the underlying...
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    That is not how a lab makes lenses. If you can't...

    That is not how a lab makes lenses. If you can't verify the PD the lab can't layout a PD.
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    Ok. Let's see if we can get you to answer you own...

    Ok. Let's see if we can get you to answer you own question. How would you verify the PD of the finished job you proposed, before dispensing?
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    I assume this means ordering a job cut and edged...

    I assume this means ordering a job cut and edged by a remote lab, and not uncut lenses, right?



    As Drk stated the PD for this job is irrelevant. The lab should surface and edge the thin edge...
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    I certainly did not say anything about ordering ...

    I certainly did not say anything about ordering center thickness.
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    https://www.optiboard.com/forums/showthread.php/71...

    https://www.optiboard.com/forums/showthread.php/71873-This-Weeks-Video-DAL-Test-Drive-Results

    DAL lens. I would contact https://questopticallab.com/ they seem to be the ones developing the DAL.
    ...
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    Move it from where? Moving it(decentering)...

    Move it from where? Moving it(decentering) assumes there is a correct place to move it from. Why layout the lens in a suboptimal position then move it to a more optimal position?

    I guess the...
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    Yes you could, but why would you? Send a tracing,...

    Yes you could, but why would you? Send a tracing, specify a lens thickness and block accordingly.
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    398

    Why would it need to be decentered for thickness...

    Why would it need to be decentered for thickness and not just surfaced to the correct thickness to start with?
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    They are covered under the FDA Code of...

    They are covered under the FDA

    Code of Federal Regulations, Title 21 Part 801.410 (21 CFR 801.410).
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    589

    While ANSI Z80.31 is non-enforceable suggestion,...

    While ANSI Z80.31 is non-enforceable suggestion, it does state "All lenses shall conform to the impact resistance requirements of the Code of Federal
    Regulations, Title 21 Part 801.410 (21 CFR...
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    I'll have to agree with Drk on this one. I have...

    I'll have to agree with Drk on this one. I have never remade lenses for someone who's complaint was "vision is too good, too clear, too sharp" or anything of that ilk. I have had plenty of patients...
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    Yes, you do need to go on. You seem to be...

    Yes, you do need to go on. You seem to be implying that I said 1.60 was no good and we shouldn't use it. I obviously didn't. You compared 1.60 to CR39. I asked why would we get rid of a great,...
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    I would highly recommend Cherry Optical in Green...

    I would highly recommend Cherry Optical in Green Bay. Obviously not near you, but it should still be next day UPS shipping. They sell IOT lenses directly under the IOT names, also some are rebranded...
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    Let's get rid of a great, inexpensive material...

    Let's get rid of a great, inexpensive material that is suitable for many patients? What on earth for?
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    Sounds like optiboard has turned into a Monty...

    Sounds like optiboard has turned into a Monty Python sketch.


    https://youtu.be/liIlW-ovx0Y?t=44
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    I have no idea how much. Just throwing some other...

    I have no idea how much. Just throwing some other info I found into the ring. Someone would have to contact Ed or younger to see how they came to their conclusions.

    I will say that I use a ton of...
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    This 2008 paper by Ed De Genarro states that for...

    This 2008 paper by Ed De Genarro states that for spherical 50mm diameter lenses with the same center thickness,

    "Trilogy lenses are lighter than polycarbonate from +12.00D through-11.00D and...
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    The one you obviously just replied to, for no...

    The one you obviously just replied to, for no other reason then to schlep fastgrind.

    Service, quality, price... That's normally followed by "pick 2". But you tooted right on board saying and...
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    I think you may have missed Drk's point Don...

    I think you may have missed Drk's point Don...
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    It sounds like it was a high index lens that did...

    It sounds like it was a high index lens that did not have index matched coatings. Those seem to have a more pronounced "rainbow sheen" birefringence.
  23. Well I would expect opticians to understand some...

    Well I would expect opticians to understand some basics about the lenses they are fitting patients with, and I wouldn't expect an optician to ask for a go to free-form lens for simple single vision...
  24. This is beginning to sound very much like a...

    This is beginning to sound very much like a consumer post...
  25. And all 4 are degressive lenses, just with...

    And all 4 are degressive lenses, just with different amounts of degression. No? They are all going to have some blur to varying degress. Certainly not consistent power across the lens as OP described.
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