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Thread: Hoya's Binocular Harmonization - is it unique? Does it work?

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    Hoya's Binocular Harmonization - is it unique? Does it work?

    Hoya says they have fixed the issue of anisometropia with their binocular harmonization technology.

    My questions:
    - for those who have dispensed these lenses, do they really work better for pts with significant aniso?
    - is binocular harmonization built in to other digital PAL designs, but they manufacturer's don't highlight it? In other words, could the aniso be addressed equally in, say, an Autograph Intelligence lens, or an IOT lens?

    I'm asking because I have a pt who has never worn glasses, is 65, and has asked for a trifocal. I think a digital pal is going to work better for her because of the aniso, but I'm wondering if I should go with Hoya because of this specific technology.

    She is:
    OD: -5.00 sph
    OS: -0.75
    Add: +2.75

    Thanks for any insights.

  2. #2
    One eye sees, the other feels. OptiBoard Gold Supporter
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    This may help.

    https://www.2020mag.com/ce/design-a-...ual-experience

    From the above,

    Anisometropia is considered clinically significant if the power difference is two diopters or higher. But HOYA suggests that sub-clinical values are still an important consideration in progressive lens optics.
    implying that only low levels, probably no more than 1.50∆ of localized prism can be generated without creating problems, i.e. blur in the blend zone and other negative anomalies.

    If your client is symptomatic, maybe due to sudden onset of ansiometropia, or acquired late in life, they would benefit from an auxiliary pair of near only eyeglasses, slabbed segmented multifocal, etc.

    Hope this helps,

    Robert Martellaro
    Roberts Optical Ltd.
    Wauwatosa Wi.
    www.roberts-optical.com
    ~~~~~~~~~~~~~~~~~~
    Science is a way of trying not to fool yourself. - Richard P. Feynman

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    Robert is right... Hoya's technology is good, but doesn't fix high anisometropia.

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    Master OptiBoarder AngeHamm's Avatar
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    Quote Originally Posted by charisw View Post
    Hoya says they have fixed the issue of anisometropia with their binocular harmonization technology.

    My questions:
    - for those who have dispensed these lenses, do they really work better for pts with significant aniso?
    - is binocular harmonization built in to other digital PAL designs, but they manufacturer's don't highlight it? In other words, could the aniso be addressed equally in, say, an Autograph Intelligence lens, or an IOT lens?

    I'm asking because I have a pt who has never worn glasses, is 65, and has asked for a trifocal. I think a digital pal is going to work better for her because of the aniso, but I'm wondering if I should go with Hoya because of this specific technology.

    She is:
    OD: -5.00 sph
    OS: -0.75
    Add: +2.75

    Thanks for any insights.
    Putting that patient in a PAL of any kind is an express ticket to nonadaptville.
    I'm Andrew Hamm and I approve this message.

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    Thanks, everyone, I really appreciate it. I think we'll try a segmented multifocal with a slab off instead.

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    Master OptiBoarder AngeHamm's Avatar
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    Please keep us posted!
    I'm Andrew Hamm and I approve this message.

  7. #7
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    Quote Originally Posted by AngeHamm View Post
    Please keep us posted!
    Can do! We decided to back off to -3.50 in the OD in order to give her intermediate (since she's been used to monovision anyway; this is not sudden onset aniso), and do bifocals instead or trifocals (w
    ith a slab-off, of course)
    . Not having ever worn glasses this seemed like a more reasonable option.

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