Acuvue Advance silicone hydrogels

Discussion in 'Optometry Archives' started by Lothar of the Hill People, Oct 5, 2003.

  1. Has anybody heard anything about the pending Acuvue Advance silicone
    hydrogel contact lenses? I am curious what stage of the FDA approval
    process they are in and what lens parameters they will be available
    in, as well as their Dk value.

    Lothar
     
    Lothar of the Hill People, Oct 5, 2003
    #1
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  2. Lothar of the Hill People

    LarryDoc Guest

    It will all be mystery until the legal dust settles. Two of the largest
    and deepest-pockets pharmaceutical companies are battling it out. Wish I
    could be there!

    The good news is that B&L just pervailed in their EU challenge to the
    Novartis/Ciba suit.

    If I were a gambling man, I'd expect to see a B&L and Ciba silicone
    torics in EU by end of first quarter 2004 and soon thereafter a
    multifocal. J&J in the race with similar products in the same time frame
    would be a good bet. USA arrival?

    Now, if I was a gambling man............

    Here's something else to add to the discussion:

    Staar Surgical just got their first FDA approval for their ICL
    (implantable contact lens), Friday with final approval and USA marketing
    to follow first quarter next year. So let's see: same-time wide
    availability of a multitude of silicone hydrogels, and a "refractive
    surgery" arguably far superior to LASIK . Bye bye LASIK?

    I AM a gambling man.

    --Larry

    --
    Dr. Larry Bickford, O.D.
    Family Practice Eye Health & Vision Care

    The Eyecare Connection
    http//www.eyecarecontacts.com
    larrydoc at m a c.c o m
     
    LarryDoc, Oct 5, 2003
    #2
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  3. I'd love to play you in a game of poker, Larry. We could use contact
    lenses as chips ("I'll see your RGP and raise you a silicone
    hydrogel...").

    Thanks for the interesting observations/predictions.

    Lothar
     
    Lothar of the Hill People, Oct 5, 2003
    #3
  4. Lothar of the Hill People

    Dr. Leukoma Guest

    Why would you think that a Staar Surgical IOL would be superior to LASIK?

    DrG
     
    Dr. Leukoma, Oct 5, 2003
    #4
  5. Lothar of the Hill People

    LarryDoc Guest

    ICL, not IOL. But of course the ICL is AN IOL, but we are not talking
    about phakic IOL/ lens exchange here, but adding a lens. BTW, I agree
    with the folks on the FDA panel who have problems with the name
    "implantable contact lens". I think it tends to trivialize the surgical
    significance of the thing. But then again, that's nothing in comparison
    to the LASIK advertising going on around here.

    OK, let's see:

    1. No loss of BCVA compared to 2% LASIK'd lossing two or more lines,
    2. 86% achieving 20/20 or better BCVA compared to 50%
    3. 50% achieving 20/20 or better uncorrected VA compared to 35%
    4. 90% within 1 D of of attempted correction, 65% within .5D compared to
    76% and 53% respectively for LASIK
    5. vastly superior optical quality with LASIK causing 3 times the
    number of abberations resulting from coma and spherical. No loss of
    contrast sensitivity for ICL compared to oftentimes significant loss for
    LASIK.

    [ref: Cornea, Journal of Cornea and External Disease, May, 2003, Journal
    of Refractive Surgery, Aug 2003)]

    It's also at least theoretically reversable. (I'd like some stats on
    that one.)

    Both of those studies were of a statistically significant comparison of
    ICL and LASIK groups, but personally, I'd like to see the numbers
    compared for specific coherts and not so generalized. I'd guess that, in
    a best-case low myope with good cornea thickness and 5mm pupil size
    compared to the same ICL group that there would not be a great
    difference in outcomes. But comparing higher corrections and certainly
    those with less ideal other parameters, it would seem that ICL would be
    a better choice.

    But it's still surgery and therefore there are still risks. Less? I
    guess that would depend on a combination of a number of variables. For
    me, any risk to my eyesight is too much risk so I'll pass on either
    procedure. Heck, before silicone hydrogels I wouldn't even think of
    sleeping (intentionally ;-) in contact lenses.

    I just think that this procedure, combined with the silicone hydrogel
    lens is going to give those who need vision correction more options, and
    that is certainly a good thing. Perhaps ethical marketing on all fronts
    will result in a lot more people experiencing a lot better vision and
    less people hurt --- optically and emotionally.

    --LB

    --
    Dr. Larry Bickford, O.D.
    Family Practice Eye Health & Vision Care

    The Eyecare Connection
    http//www.eyecarecontacts.com
    larrydoc at m a c.c o m
     
    LarryDoc, Oct 6, 2003
    #5
  6. Lothar of the Hill People

    Dr. Leukoma Guest

    (Eric 10Dpt) wrote in
    Hi Eric. Thanks for making this point. I concur.

    DrG
     
    Dr. Leukoma, Oct 6, 2003
    #6
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