astigmatism and soft lenses question

Discussion in 'Contact Lenses' started by Nina, Aug 19, 2007.

  1. Nina

    Nina Guest

    I am wearing glasses for 10 years and now I would like to wear soft lenses.

    My eyeglass prescription is

    VOD sa -1.75 = sa -0.50 dcyl ax 170 = 0.7 - 0.8
    TOD dig N kPa
    VOS sa -1.25 = sa -0.75 dcyl ax 0 = 0.7 - 0.8
    TOS dig N kPa

    Problem is that I can't find toric soft lenses with -0.50 dcyl (the smallest
    is -0.75). My ophthalmologist gave me purevision soft lenses without
    cylinders, but I am not satisfied, because my vision with them is not
    perfect, I still have to squint while working on computer or watching TV.

    I would appreciate any advice

    Thank you in advance and excuse my English
    Nina, Aug 19, 2007
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  2. Nina

    p.clarkii Guest


    there are no -0.50 cylinder toric lenses available. the smallest
    cylinder correction is -0.75 as you stated.

    I cannot understand for sure what your prescription is. what you
    listed above has some abbreviations and added numbers that are not
    used in the US (my location) and I am not familiar with (e.g. sa, 0.7
    - 0.8). Please restate what your eyeglass prescription is, and what
    your contact prescription is.

    It is possible that your actual cylinder correction may be approx.
    -0.75 or even a little more. I would be interested in seeing your
    keratometry readings (corneal curvature or "K" readings). In my
    practice if I had a patient who still complained of slight distance
    blur I would trial them in toric lenses, and maybe some slightly
    overminused powers using a lens with aspheric design.
    p.clarkii, Aug 19, 2007
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  3. the left eye has .75 cyl (apparently) so why not try a toric?
    michael toulch, Aug 21, 2007
  4. Nina

    Nina Guest

    To try toric for left eye and normal for right eye or?
    Nina, Aug 22, 2007
  5. Nina

    Nina Guest

    My location is Croatia, but I tought that that is latin.

    Please restate what your eyeglass prescription is, and what
    That is the only prescription that I have and it should be valid for both
    (glasses and contacts).
    I don't have keratometry readings (I don't know what is it). Should my
    opthamologist measure it or?

    Thank you
    Nina, Aug 22, 2007
  6. Nina

    Dan Abel Guest

    Yes, or toric for both. If you need -.50, then I would think that -.75
    would be closer than zero.

    ODs like to fit non-toric lenses, when they work. They are easier to
    fit, both for the patient and the doctor. Also, some patients balk at
    the cost of torics, which are several times more expensive.

    Also, if these work for distance, you may be at that age where you need
    different correction for close. I wore over the counter reading glasses
    over my contacts for close work.

    The above is based on my experience as a patient with somewhat similar
    problems. Although it is a good idea to find out as much as possible
    from everybody (at least that is what I think), your doctor should be
    your final authority.
    Dan Abel, Aug 22, 2007
  7. Nina

    p.clarkii Guest

    its OK to try torics in both or either eye. you have a small amount
    of astigmatism so torics might help your acuity a little bit but not
    very much. i would suspect you could readily read 20/20 with just
    spherical lenses.

    trying a toric lens would not hurt you in any way.
    p.clarkii, Aug 22, 2007
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