Change in prescription due to contact lens?

Discussion in 'Contact Lenses' started by Gary, Jun 30, 2006.

  1. Gary

    Gary Guest

    It's only of academic use to me, but am curious to know what kind of dioptre
    change in prescription is possible when the eye is tested the day after
    contacts were last worn. Obviously the type of lens worn is a major factor.
    Are there any studies/figures around for this?

    Gary, Jun 30, 2006
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  2. Gary

    Dr. Leukoma Guest

    The extreme example of this is in overnight orthokeratology, where a 2
    to 3 diopter change is possible.

    Dr. Leukoma, Jun 30, 2006
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  3. Gary

    Gary Guest

    Thanks. How about soft toric lenses? Still 'very little'?
    Gary, Jun 30, 2006
  4. Gary

    acemanvx Guest

    soft contacts normally dont produce a change but ive heard focus day
    and night contacts causing a mild orthoK effect if worn inside out. RGP
    contacts often have a mild orthoK effect. When someone wants lasik, he
    must be out of contacts for a while to remove all doubt and allow the
    cornea to revert back.
    acemanvx, Jun 30, 2006
  5. Gary

    Neil Brooks Guest


    On what do you base your statements above? Is it *primarily* your
    clinical research, or is it from your first-hand experience in your
    optometric practice?

    Neil Brooks, Jun 30, 2006
  6. Gary

    Charles Guest

    I have -1 cylinder power in my left eye and I can see perfectly through
    it in the morning after wearing RGP the previous day. Not sure how
    long it would persist. My right eye is -1.5 cyl and it is still a
    little off.

    Charles, Jun 30, 2006
  7. Gary

    acemanvx Guest

    most of my knowlege comes from research on the web
    acemanvx, Jul 1, 2006
  8. Gary

    Neil Brooks Guest

    Make that your signature, Ace.

    Quit screwing with people's eyesight to feed your hungry ego.

    I can think of NOTHING more -- as you call it -- "rude."
    Neil Brooks, Jul 1, 2006
  9. Gary

    retinula Guest

    an excellent recommendation.

    you should sign all your posts with "I am not an eye doctor or have any
    training in vision science. 100% of what I think I know comes from
    reading on the internet."

    if you did that i don't think anyone would have any problems with your
    constant interjection of comments (which appear to feed your ego rather
    than really answer anybody's questions).

    retinula, Jul 1, 2006
  10. Gary

    Gary Guest

    Okay, many thanks for the info :)
    Gary, Jul 3, 2006
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