Great safety program for soft contact lens wearers

Discussion in 'Contact Lenses' started by doctor_my_eye, Jul 1, 2006.

  1. When the silicone hydrogel lenses like Focus Night & Day and Acuvue
    Advance were first invented the solutions manufacturers had to play
    "catch up." The concept behind "Moisture Lock" was a great idea...to
    create a layer of film on the contact that keeps it softer and more
    supple. The "perfect storm" that seems to have enveloped the Bausch &
    Lomb product is that when the patient put the "moisture lock" in his
    case, a biofilm occurred on the surface of the solution. Then, when he
    just "topped off" his case the next day without emptying and rinsing,
    the trapped biofilm became a medium for the fusarium to grow.

    So, the patient had to be around mold (which is really easy to do in
    the Southern US where most of the infections occurred) and then they
    were "top-offers", which certainly does not mean that they were filthy
    disgusting people with bad breath and bad hygeine.

    The "Wear & Care" program includes a video that explains how to clean
    your lenses and also a little sticker that goes on the bathroom mirror
    to remind you to wash your hands before you touch your contacts.

    These issues usually do not affect RGPs because microbes hate to live
    on gas permeables. One of the features of a rigid lens that makes it
    "gas permeable" is that it has to have an ability to grab oxygen and
    literally throw it through the lens to the cornea.
    A tiny little electrical charge that amounts to just hundredths of a
    millivolt is produced by this exchange of oxygen, and microbes hate
    electricity and run away from RGPs. They are innately a lot "smarter"
    than we ever give them credit for.
     
    doctor_my_eye, Jul 3, 2006
    #21
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  2. doctor_my_eye

    Quick Guest

    All the solutions I've used have instructions to discard the
    used solution after soaking/storage. Moisture Lock didn't?

    -Quick
     
    Quick, Jul 3, 2006
    #22
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  3. Topping off your case was never a good idea, because you were diluting
    the antibacterial effect of the solution. The biofilm added a totally
    new risk because the top-off wasn't simply diluting the solution but
    was effectively rendering it worthless. When chemists invent new
    solutions they often don't build in an "idiot factor" that accounts for
    what goes wrong when it is used improperly. I often use the story that
    TORO lawn mowers now have a page in their instructions that remind you
    not to pick up your lawnmower and use it to trim hedges. That page
    exists because...you guessed it...somebody mowed their hedge with a gas
    mower and sued when they got hurt. Duh.
     
    doctor_my_eye, Jul 3, 2006
    #23
  4. doctor_my_eye

    Dick Adams Guest

    Certainly not without wearing safety glasses! Contacts are relatively useless
    for eye safety.
     
    Dick Adams, Jul 3, 2006
    #24
  5. doctor_my_eye

    Ragnar Guest

    As I am sure you are aware, one always present problem with any type
    of treatment is that the patient will screw it up because they are
    idiots. Keller is a prime example of that. As I recall... in her
    latest stunt, attempted to remove a contact lens with a plunger while
    drunk, and wound up tearing off a chunk of her epiithelium. OUCH!

    Of course.. she doesn't think that was her fault in any way.
     
    Ragnar, Jul 4, 2006
    #25
  6. doctor_my_eye

    Quick Guest

    And your point? Have you just done a complete
    180 in the matter of 2 posts?

    -Quick
     
    Quick, Jul 4, 2006
    #26
  7. doctor_my_eye

    Ann Guest

    So are you saying that you would advise a monocular patient to undergo
    LASIK? I've never come across anyone yet who would advise such a
    thing whether or not they had a vested interest.

    Ann
     
    Ann, Jul 4, 2006
    #27
  8. doctor_my_eye

    Ragnar Guest

    Where did this monocular issue come from? I never mentioned it at
    all. And just to answer your question... I would advice a monocular
    patient to undergo LASIK. I have never come across anyone yet who
    would NOT advice such a thing.

    The only exception is... why is that patient monocular? If it was due
    to some eye disease.. then no.. they should not have lasik in their
    other eye. Basically.. the criteria here is to determine what was the
    cause of the loss of vision in the bad eye.
     
    Ragnar, Jul 4, 2006
    #28
  9. doctor_my_eye

    Ragnar Guest

    Again.. I tend to agree with everything you said. However, patients
    often don't do what they should.
     
    Ragnar, Jul 4, 2006
    #29
  10. doctor_my_eye

    Ragnar Guest

    What point are you referring to? I am not aware of any 180
     
    Ragnar, Jul 4, 2006
    #30
  11. doctor_my_eye

    Ann Guest

    You obviously didn't bother reading my response to your post of some
    time ago. That's okay, it's not obligatory to read all posts but when
    you miss them you can't act surprised.

    I never mentioned it at
    'advise' the word is. Advice doesn't fit.
    That doesn't make sense. You aren't explaining yourself very well.

    Ann
     
    Ann, Jul 4, 2006
    #31
  12. doctor_my_eye

    Ragnar Guest

    My screen resolution is set at 2048 x 1536 and the text is extremely
    small... yes.. advise is the correct spelling.

    If it doesn't make sense to you, it never will. I will try again
    though.

    As long as the condition that led to the loss of vision in one eye is
    not related to the good eye.. then there is no reason at all not to
    have lasik on the good eye.

    I think you confused monovision with monocular vision.
     
    Ragnar, Jul 4, 2006
    #32
  13. doctor_my_eye

    Ann Guest

    No, not at all. Having one eye is a contraindication for having
    LASIK. You are the only person I have ever come across to say
    otherwise. Most even advise against wearing a contact lens never mind
    messing about permanently with the eye. I don't think I would
    recommend your services to anyone.

    Ann
     
    Ann, Jul 6, 2006
    #33
  14. doctor_my_eye

    Ragnar Guest

    That's great Ann.. or should I say... Sandy. You didn't fool me.

    You are out of your mind.
     
    Ragnar, Jul 6, 2006
    #34
  15. doctor_my_eye

    DrG Guest

    You can do that all by yourself.

    Ann is a sci.med.vision regular. She lives in the UK, and lost an eye
    to melanoma.

    She's also wicked smart, as you have discovered.

    DrG
     
    DrG, Jul 6, 2006
    #35
  16. doctor_my_eye

    Ragnar Guest

    Really?
    Did her adivce every kill anyone?

    Ann doesn't impress me. Neither do you.
     
    Ragnar, Jul 6, 2006
    #36
  17. doctor_my_eye

    Neil Brooks Guest

    I bet our Ace and our Otis do, though.
     
    Neil Brooks, Jul 6, 2006
    #37
  18. doctor_my_eye

    LarryDoc Guest

    Please delete the cross-posts from alt.lasik-eyes. Ragnar is their
    Otis. It's a flame war that's been raging daily for four years, perhaps
    longer. Tiring, boring.

    LB, O.D.
     
    LarryDoc, Jul 6, 2006
    #38
  19. doctor_my_eye

    Ragnar Guest

    Ace doesn't impress me at all.
    Who is Otis?

     
    Ragnar, Jul 7, 2006
    #39
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