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Thread: Super high plus question?

  1. #1
    What's up? drk's Avatar
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    Super high plus question?

    We have a tiny 12 y.o. CL wearer who is about +6.75 DS and begs and insists on rimless frames! Mom is a pushover, and apparently so am I (although I did tell them that remakes will be at their expense...).

    We found a chassis, and we found a 45 eyesize pattern that was symmetrical enough to be cut down a 38 eye without looking funny.

    I ordered Seiko's 1.67 aspheric and requested a 65mm blank be used. Apparently, AR is not an option, here.

    Question: what else could've be done, other than smack the girl silly? Are there any companies that make blanks under 65 mm?

  2. #2
    Objection! OptiBoard Gold Supporter shanbaum's Avatar
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    Quote Originally Posted by drk
    We have a tiny 12 y.o. CL wearer who is about +6.75 DS and begs and insists on rimless frames! Mom is a pushover, and apparently so am I (although I did tell them that remakes will be at their expense...).

    We found a chassis, and we found a 45 eyesize pattern that was symmetrical enough to be cut down a 38 eye without looking funny.

    I ordered Seiko's 1.67 aspheric and requested a 65mm blank be used. Apparently, AR is not an option, here.

    Question: what else could've be done, other than smack the girl silly? Are there any companies that make blanks under 65 mm?
    I don't understand - why do you think you want a smaller blank?

    Maybe I should ask, is this how you order uncut lenses? By blank size?

  3. #3
    Allen Weatherby
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    Alternate technology

    I wanted to make you aware of a technology that we have developed and are considering offering in addition to functions this was designed for. The technology is Thin-ICE Rx which was developed around freeform technology. I just computed what this we could produce with an optical zone of 40mm. We can produce a poly lens with AR and a maximum thickness of 4.1mm.

    If you will send me a private message with the PD and lens A and B measurement I can fine tune this to offer you great solution. I hope you will also be pleasently surprised at the price we can offer. We would be glad to help you out if you like.

    Regards,

    Allen Weatherby

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    Master OptiBoarder Darryl Meister's Avatar
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    You could always have a pair surfaced to the smallest diameter you need...?
    Darryl J. Meister, ABOM

  5. #5
    Objection! OptiBoard Gold Supporter shanbaum's Avatar
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    Quote Originally Posted by Darryl Meister
    You could always have a pair surfaced to the smallest diameter you need...?
    That's what I was wondering about...

  6. #6
    Old Optician to New OD Aarlan's Avatar
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    why no a/r? Why not have them surfaced? Also I suppose I'm getting overly paranoid, but no poly for a kid? In a drill mount? I know 1.67 is a great drill material, but for the duty to warn people, is a non poly lens in a drill frame a good idea?


    AA

  7. #7
    One of the worst people here
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    I would not do the job without surfacing.

    1.67, and get a copy to coat it with AR. I am sure Zeiss, Essilor, or Sola would be willing to do it.

  8. #8
    Underemployed Genius Jacqui's Avatar
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    I would surface and AR. DON"T SMACK THE KID !!!

  9. #9
    Master OptiBoarder
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    65 blank? They'd be way too thick and heavy. They need to be surfaced in poly.

  10. #10
    One of the worst people here
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    Quote Originally Posted by Jacqui
    I would surface and AR. DON"T SMACK THE KID !!!
    If you do smack the kid make sure you use a trout

  11. #11
    OptiBoard Professional William Walker's Avatar
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    Last week I had a 6 year old with a +5.50 OU (or right about there). I told the parents that I'd sell him trivex or poly, and once he's old enough, we could look at options that are even thinner, but if they want me to sell their child glasses, they had two options.

    I told them I'd love to sell them a more expensive pair of glasses, but I like sleeping soundly at night, so if they wanted a high index pair, I'd be happy to give their Rx back, and send them on their way

    Cosmetics should be the last thing an optician thinks of, even though it's the consumer's first.

    Just my opinion,
    William
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  12. #12
    Banned
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    Well no one else has asked. Is it or is it not legal to use rimless frames on children?Or is it just not recommeded from a liability standpoint?

  13. #13
    Objection! OptiBoard Gold Supporter shanbaum's Avatar
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    Quote Originally Posted by chip anderson
    Well no one else has asked. Is it or is it not legal to use rimless frames on children?Or is it just not recommeded from a liability standpoint?
    I don't know of any federal regulation, and it would surprise me were any state to have such a regulation.

    However, it's certainly not recommended "from a liability standpoint". It could probably be established that a reasonable professional optician or optometrist would not fit a young child with rimless glasses, or with lenses other than polycarbonate (which would mean, that's the "standard of care" that would apply). Failure to observe the standard of care is a breach of your duty to your patient. If that breach causes harm, you're negligent, and you get to pay damages sufficient to render the victim indifferent to the harm.

    I must note that a) I'm not a lawyer, so b) this must not be taken as legal advice. Which is better, a or b? Oh, not an optometrist, either... would you like fries with that?

  14. #14
    One of the worst people here
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    Quote Originally Posted by chip anderson
    Well no one else has asked. Is it or is it not legal to use rimless frames on children?Or is it just not recommeded from a liability standpoint?
    He is 12.

    Plus, you know, as do I that a +6.25 in poly, even plastic is very hard to break.

  15. #15
    What's up? drk's Avatar
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    Hey, thanks to all posters, especially the kind Shanbaum.

    I think I had a fundamental misunderstanding! I didn't understand how surfacing would help.:hammer:

    See if I have this right: I assume that the uncut blank will be, say, +8.00 on the front and plano on the back, and about 70 mm.
    Then, when put on the generator, it will be ground down on until it has the appropriate diameter?

    Regarding polycarbonate, I would be happy to use it. My feeling was that with such an extreme job, I'd need all the help I could get. Perhaps it was unwise.

    So, surface some aspheric poly, right?
    Last edited by drk; 07-12-2005 at 08:35 AM.

  16. #16
    Objection! OptiBoard Gold Supporter shanbaum's Avatar
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    Quote Originally Posted by drk
    Hey, thanks to all posters, especially the kind Shanbaum.

    I think I had a fundamental misunderstanding! I didn't understand how surfacing would help.:hammer:

    See if I have this right: I assume that the uncut blank will be, say, +8.00 on the front and plano on the back, and about 70 mm.
    Then, when put on the generator, it will be ground down on until it has the appropriate diameter?

    Regarding polycarbonate, I would be happy to use it. My feeling was that with such an extreme job, I'd need all the help I could get. Perhaps it was unwise.

    So, surface some aspheric poly, right?
    No, I suspect that for a 38mm eye size, most of the aspheric part of the lens would be edged away.

    But when you order uncut lenses from your lab, you should provide them with frame measurements and layout parameters (PD's, heights) and let them decide how best to fabricate it for minimum thickness. In this case, they may start with a 70mm semi-finished blank, but they'll end up with a much smaller finished lens after surfacing.

  17. #17
    Pomposity! Spexvet's Avatar
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    Quote Originally Posted by drk
    ...Regarding polycarbonate, I would be happy to use it. My feeling was that with such an extreme job, I'd need all the help I could get. Perhaps it was unwise.
    Shame on you! Now apologize to our beloved polycarbonate, young man.;) :cheers:
    poly! poly! poly!
    ...Just ask me...

  18. #18
    Underemployed Genius Jacqui's Avatar
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    Tryvex :) Trivex :) Trivex :)

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    Master OptiBoarder Darryl Meister's Avatar
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    For the ultimate in protective eyewear, you could always drill pinholes into a steel plate and strap that to their faces. ;)
    Darryl J. Meister, ABOM

  20. #20
    Allen Weatherby
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    Darryl makes a great point. I see everyone super super worried about kids in any material other than poly. The strength of other materials in many ways is better than poly. Poly has its place, however there are other lens materials that can be worn by children without creating great risks. Under the same logic shouldn't elderly people all have to wear poly also? It is common for elderly people to fall as many have balance problems and as vision deteriorates they can trip easier. Why would you use any lens other than poly for these patients.

    If all I sold were poly lenses I would be giving the saftey and liability pitch as well.

  21. #21
    One of the worst people here
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    Do them in glass. Better optics, less scratching.

  22. #22
    Bad address email on file
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    Quote Originally Posted by For-Life
    Do them in glass. Better optics, less scratching.
    kidding right?!

  23. #23
    One of the worst people here
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    Quote Originally Posted by cinders831
    kidding right?!
    Hope so, or I might get a bad reputation.
















    Deservedly so...

  24. #24
    Rising Star Rim Ranger's Avatar
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    Wouldn't that prescription look terrible in a rimless? I would never do it. It would be better to lose a sale than dispense something like that.

  25. #25
    OptiBoard Professional Eddie G's's Avatar
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    LOL

    If it were me and I lived in the USA then I would probably use the TEGRA poly aspheric lens for this job.

    But if this kid is a computer geek and doesn't play any sports and has a great track record for keeping his glasses in great shape and if this was in Canada then I'd go for the surfaced 1.67 Aspheric's!

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