Color Fringes with new glasses

Discussion in 'Glasses' started by toller, Sep 22, 2005.

  1. toller

    toller Guest

    I am 51. I started wearing +1.25 glasses about 10 years ago, 1.25/1.50
    bifocals 5 years ago, and my new glases are 1.75/1.75 with +.25
    astigmatism.

    The new glasses have orange and blue fringes in the distance portion.
    The oculist adjusted them and they are a bit better, but the fringes
    are still there. The reading portion is fine, and the fringes are only
    when viewed through the very top part of the lens.

    The oculist says it is common, though less so with the antiglare
    coating I got, and I will get used to it. I suppose they are rather
    stronger than my old lenses, so maybe that is why I haven't had it
    before. What you think?
     
    toller, Sep 22, 2005
    #1
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  2. toller

    Toller Guest

    Yes, they are polycarbonate. The oculist thought that was the right
    material for my presciption and lense size.
    I do wear them while using power tools, so maybe it is the best choice.
    Thanks.
     
    Toller, Sep 22, 2005
    #2
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  3. toller

    Mark A Guest

    If you want safety glasses with excellent vision, then get Trivex lens
    material. This is sold as Hoya Phoenix,and Younger Trilogy lens materials.
    The only downside is that Trivex is not as thin as polycarb, but it is very
    light. If your Rx is 1.75, then Trivex would be more than thin enough.

    You will probably have to get Trivex at an independent optician that carries
    either Hoya or Younger (not likely at a large chain store). I would phone
    around town before visiting any specific optician.

    Don't ever let anyone talk you into polycarb for driving. If you want a
    separate pair of glasses for your shop work, then polycarb may be fine. The
    odds of you being injured or killed by poor polycarb vision when driving is
    much higher than the likelihood of being injured by using power tools with
    regular lenses (unless your job is use power tools). Polycarb kills.
     
    Mark A, Sep 23, 2005
    #3
  4. toller

    Toller Guest

    Don't ever let anyone talk you into polycarb for driving. If you want a
    Well, you have my attention. Why does polycarb kill?
    I only see the color (and they are all that bad) through the top quarter of
    the lense, and I wouldn't expect to see much traffic there. And they are
    still satisfactorily sharp despite the color fringes.
    The reading part, which is the most powerful, is fine; no color fringes at
    all

    They reflect a faint blue/green image; I presume that is the anti-glare
    coating? It seems to be pretty much the same all over.
     
    Toller, Sep 23, 2005
    #4
  5. As someone opposed to polycarb myself, I think the case was somewhat
    overstated. I suppose you could dream up a scenario where the severe
    chomatic aberration of polys could distort peripheral vision enough to
    cause an accident. Pretty much a stretch, IMO.

    The blue/green reflection is just the selective wavelengths reflected
    off by the AR coating. Nothing more. Normal.

    w.stacy, o.d.
     
    William Stacy, Sep 23, 2005
    #5
  6. Polycarb kills? Only if your glasses impale your forehead when you are
    struck by a steel bar going through your skull. Geez, lighten up on
    the hyperbole. The way I describe the distortion of polycarb to a
    typical patient is to remind them that airplane windows are made of
    polycarbonate. Their strength is amazing, and they can take a
    tremendous impact without breaking. But, as you know, when you look
    out the edge of the window, the optics are distorted enough to make the
    houses or the clouds look wavy and distorted.
     
    doctor_my_eye, Sep 24, 2005
    #6
  7. toller

    Mark A Guest

    Polycarb has killed and severely injured many people while driving because
    of poor peripheral vision, than it has saved from non-industrial accidents.
    So yes, polycarb kills.

    If one needs safety glasses for working in an industrial environment, that
    is justified, but I would not use them for driving.
     
    Mark A, Sep 24, 2005
    #7
  8. toller

    Quick Guest

    How did they poll the dead people?

    -Quick
     
    Quick, Sep 24, 2005
    #8
  9. Mark, Mark...put down the hash pipe and wake up and smell the burning
    CR-39. Are you aware of the fact that poly lenses are the "lens of
    choice" for ALL children's eyeglasses at Lenscrafters, as they are
    concerned about children being injured at play? I know of large
    pediatric optometry and pediatric ophthalmology practices that SPECIFY
    polycarbonate lenses on every prescription that they write. Period.
    Every script demands poly lenses.

    To say that the peripheral abberation of poly is "dangerous" is
    dangerous hyperbole. I have thousands of happy patients wearing poly
    progressive lenses in their rimless frames, and we have a a 10%
    remake/rejection rate. We put poly in every drilled rimless that
    leaves our practice, and that amounts to about 30 pairs of poly lenses
    a week. 27 of those 30 pairs are worn successfully. The other three
    probably read your diatribe! ;)
     
    doctor_my_eye, Sep 25, 2005
    #9
  10. toller

    Mark A Guest

    OK, if a child does not drive, then probably no serious harm done. But
    Trivex would be better.

    For the adults with progressive poly lenses, probably the reason not many
    complain is that most of them are killed in traffic accidents shortly after
    leaving your office.
     
    Mark A, Sep 25, 2005
    #10
  11. toller

    Toller Guest

    Original poster here...
    My polycarb progressive bifocals are half rimless, with a wire underneath.
    Would you use polycarb here?

    I have worn them a few days now. The reading part is fine. The middle
    third shows a little color, but not enough to be a problem. It is the top
    third that is annoying. When I drive, the tops of trees have fringes. I
    can't see how that would cause an accident, except if I were thinking about
    it instead of the road; but it is annoying. The peripheral vision has
    fringes also, but I can't really see it unless I look for it, so it is
    hardly a problem.
    What to do, what to do...
     
    Toller, Sep 25, 2005
    #11
  12. toller

    Mark A Guest

    If they are under warranty or if the retailer offers a 30 day money back
    guarantee, take them back and get Trivex or some other lens material. Any
    other lens material.

    I switched out my polycarbs for Varilux Panamic 1.60 lenses, and there was a
    dramatic improvement in vision. But any lens material is better than
    polycarb.

    The point about the driving was not that you really are likely to have an
    accident with polycarb. But you are more likely to have a driving accident
    with polycarb than you are likely to prevent an eye injury because your
    lenses do not have very high impact resistance or tensile strength. But if
    you must have impact resistance or tensile strength, get Trivex (Hoya
    Phoenix or Younger Trilogy).

    An optician dispenses polycarb, especially for drill mounts or other similar
    difficult mounts, because they are less likely to crack and they will have
    fewer returns for that reason. They don't give a damn about your vision.
     
    Mark A, Sep 25, 2005
    #12
  13. toller

    LarryDoc Guest

    Yes. There will be that many less guns around.
     
    LarryDoc, Sep 25, 2005
    #13
  14. ...Nice rebound.
     
    doctor_my_eye, Sep 25, 2005
    #14
  15. toller

    Dr. Leukoma Guest


    .....while dialing their cell phones.


    I agree with the Trivex statement, though. Excellent material.


    DrG
     
    Dr. Leukoma, Sep 25, 2005
    #15
  16. I think wide temples are outlawed in many areas for just that reason...

    Re shooters, replace their polys with Trivex and they will appreciate
    it. You'll never get their guns away.

    You must have a pretty weak Rx.

    I'm no longer using poly for much of anything.

    w.stacy, o.d.
     
    William Stacy, Sep 25, 2005
    #16
  17. I routinely fill such Rxs with Trivex, without bothering to call the
    prescriber. It's not my job to educate them.

    w.stacy, o.d.
     
    William Stacy, Sep 25, 2005
    #17
  18. toller

    Toller Guest

    I went back today and complained. He said 4 days was too early to say I
    didn't like them, but went at them with a pliers. The problem is reduced by
    about half. He said they were crooked. Hmm.
     
    Toller, Sep 26, 2005
    #18
  19. toller

    Neil Brooks Guest

    I lost the original thread. I'm just hoping you're not talking about
    an Intraocular Lens <g>
     
    Neil Brooks, Sep 26, 2005
    #19
  20. toller

    Mark A Guest

    What problem?
     
    Mark A, Sep 27, 2005
    #20
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