lattice degeneration and laser treatment

Discussion in 'Laser Eye Surgery' started by Fred Ma, Sep 28, 2003.

  1. Fred Ma

    Fred Ma Guest


    I've known that I've had lattice degeneration for
    several years (I'm near sighted). Since I sometimes
    engage in contact sports, I elected to have laser
    treatment. Apparently, this scars the periphery of
    the retina, thereby "spotwelding" the retina to the
    back of the eye and helping to preven retinal

    I just had the left eye done several days ago, and
    the right eye was done several weeks ago. I didn't
    pay much attention to my right eye's vision, as my
    left eye is more near sighted and I try to use it more
    to avoid getting reliant on my right eye. My left
    eye's vision seems to be a bit hazy, or foggy (or
    bleary) after the treatment. I ignored it until a
    friend commented on some risks associated with a
    different kind of laser treatment (for reshaping
    the cornea). I went to the trusty web and found
    that cornea reshaping uses excimer laser (UV,
    just above 300nm wavelength). The problem was
    that many people experienced poor night vision
    after such treatment. There is no information I
    could find about the exact mechanism which causes
    this. In my relative ignorance, I imagined one
    possibility that the laser light damages the
    night time receptors. But I can't find out if
    the same kind of laser is used for lattice. Even
    if so, maybe I'm less at risk because lattice
    treatment (I imagine) focuses the light to various
    points on the periphery of the back of the eye.
    I'm guessing (again) that illumination of the
    back of the eye is not so contained during cornea
    reshaping, since the focus point is at the front
    of the eye. Or maybe the cause is some material
    change in the lense, though it would be puzzling
    why it doesn't affect daytime vision. Then again,
    maybe my bleariness is not related. Would anyone
    have enlightening knowledge or speculations about

    Fred Ma, Sep 28, 2003
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  2. Fred Ma

    Dr Judy Guest


    Would anyone
    The laser used for reshaping cornea is different than the one used for
    treating retina. The night blur from the former is likely due to treatment
    zone smaller than pupil size and due to changes in the natural aberrations
    of the eye when the corneal shape is changed. Neither of these conditions
    apply to retinal treatment.

    If your left eye vision seems worse than before treatment, call the surgeon
    who did the treatment ASAP for advice. Likely they will want to assess you
    again to determine the cause of the blur.

    Dr Judy
    Dr Judy, Sep 29, 2003
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  3. Fred Ma

    fred ma Guest

    About the diminished night vision from laser reshaping
    of cornea...what kind of natural aberrations would be
    induced from treatment by an excimer laser? I don't study
    biology, but a significant percentage of people
    experience the same symptoms, which would indicate that
    there is something systematic about it. Anyway, I guess
    the mechanism can only speculated at the moment.

    Thanks for your suggestion.

    fred ma, Sep 29, 2003
  4. Fred Ma

    Dan Abel Guest

    I also would recommend calling the doctor's office. If you are at risk
    for retinal detachment, anything they do in your eye carries some risk of
    detachment. You want to catch these things early while it's easier to

    When I saw the doctor last May, he asked whether I had had this laser
    treatment in my left eye. I told him that I hadn't, and he said that my
    eye must have spontaneously done this "spotwelding" thing, and that it
    would decrease my chance of retinal detachment.
    Dan Abel, Sep 29, 2003
  5. Fred Ma

    Fred Ma Guest

    Thanks, Dan. I was going to wait, and only follow
    Dr. Judy's advice of phoning the ophthalmologist if
    I couldn't get use to it. But better do it anyway,
    and soon.


    I attended a
    Fred Ma, Sep 30, 2003
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