Toric Contact Lenses

Discussion in 'Contact Lenses' started by Des, Jun 26, 2004.

  1. Des

    Des Guest

    I am aged 42 (entering presbyopia, I think) and recently had my eyes
    re-tested for glasses, my prescription was:

    OD (Right) Sph: -8.75 Cyl: -1.25 Axis: 178
    OS (Left) Sph: -9.50 Cyl: -0.75 Axis: 175

    I also wanted to give my face and eyes a rest from glasses for about a
    year or two, so I had a contacts test (first time) and was precribed
    Acuvue 2:

    OD (Right): Power: -8.5 BC 8.7 Dia: 14.0
    OS (Left): Power: -9.0 BC 8.7 Dia: 14.0

    I find the Acuvue comfortable and improve my general vision, but things
    still seem slightly out of focus, not much, but enough to concern me.

    I have been doing a little research and discovered this may be due to my
    astigmatism and wondered if toric lenses, specifically Acuvue Toric may
    be more benefical to me (don't want to go down the bifocal route just
    yet) am I right in thinking this ?

    TIA
    Des
     
    Des, Jun 26, 2004
    #1
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  2. Des

    Dr. Leukoma Guest

    You definitely have enough cylinder to justify trying a toric in the right
    eye. Whether the Acuvue toric would work would be a matter of trial and
    error. It is not a prism ballast lens, but works on the principle of thin
    zones for the upper and lower lids. Therefore, it will work better on some
    patients than with others, depending on lid anatomy. The problem with
    toric lenses is that they often rotate, sometimes unpredictably, which
    defeats the purpose. Also, the prism ballast lenses are thicker, and this
    in a lens that is already thicker because of the high prescription, which
    leads to hypoxia from lack of oxygen delivery. You may want to consider a
    lens like Focus N&D, which tends to mask a little more cylinder, or an RGP
    lens.

    DrG
     
    Dr. Leukoma, Jun 26, 2004
    #2
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