prescription, is this ok? (another)

Discussion in 'Optometry Archives' started by daphtpunk, Dec 27, 2004.

  1. daphtpunk

    daphtpunk Guest

    SPH T25
    CYL -025
    AXIS 100

    SPH T00
    CYL -050
    AXIS 68
    PRISM "."

    Visual Acuity
    Uncorrected L

    The optician told me that I have astigmatism in my left eye but my
    right eye is the one I have the blurriest vision in, and also the one
    that clears up if I pull down on my cheek so I'm not sure? I have to go
    back to get glasses and contacts some time but I would appreciate your

    Many thanks
    daphtpunk, Dec 27, 2004
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  2. daphtpunk

    Guest Guest

    First of all, what is the advise from your optometrist?
    Second, do you have a problem to be solved regarding the ''some time''?
    Third, a more exact prescription would provide a better answer.
    Guest, Dec 27, 2004
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  3. daphtpunk

    daphtpunk Guest

    I said I wanted contacts and she said I should also get glasses for
    certain occasions when lenses aren't suitable. Then she said I wasn't
    allowed to buy contacts on the internet because they can't be held
    responsible if something went wrong. Lastly she told me there are two
    types of lenses and I said I wanted the type of contacts that required
    the least amount of checkups (she questioned why I would want those for
    some reason?). That's pretty much it.


    I'm booked for another appointment in a couple of weeks to get the
    lenses, or glasses, I can't remember!

    Unfortunately that's all the info on the card :(
    daphtpunk, Dec 27, 2004
  4. daphtpunk

    daphtpunk Guest

    Thanks for the reply. I'm very surprised at your translation of the
    prescription, my vision has been not very good at all for a while now.
    Things that other people can read in the distance I can't see at all,
    and that often applies to my left eye. Text on the television is often
    hard to read without squinting. Also when I put my sister's glasses on
    everything looks much clearer.

    When she tested me I read out the second line from the bottom, guessing
    a lot of it although the board was only a few meters from me. Then she
    slipped a lense in my eye and it didn't look much different, I guessed
    just a couple of letters less. Is there any chance I am being given a
    'bad' prescription? Or will I be given a better test for the contacts?
    daphtpunk, Dec 28, 2004
  5. daphtpunk

    daphtpunk Guest

    I did actually say I could guess them when she asked me to to read the
    line out (the first time anyway) and she said it was fine. I thought
    the test was done by the optometrist checking you are reading the right
    letters out?
    daphtpunk, Dec 28, 2004
  6. daphtpunk

    Dom Guest

    There's a difference between lying and guessing. Guessing during the eye
    test is fine for most optometrists because if you are guessing the
    letters correctly then chances are you can actually see them. I always
    encourage my patients to guess because in general most people are too
    willing to give up and stop reading when in fact they can actually
    discern the next line down.

    Dom, Dec 28, 2004
  7. daphtpunk

    Dom Guest

    Could the 'T' characters after each SPH be a '+' sign? This would make a
    bit more sense. Also, are there any decimal points anywhere in the
    numbers immediately after the 'T's (i.e. in the 25 or the 00)?

    You have a small amount of astigmatism in both eyes, but slightly more
    in the left. Looks like your left eye would be worse for long distance
    vision. Which eye is worse for your close reading vision is hard to say,
    and it depends on your age too.

    There are plenty of people with eyes like yours who don't bother with
    glasses and aren't even aware they have a problem. So your eyes aren't
    too bad overall. Contacts for a prescription like yours may be more
    trouble than they're worth.

    This is all assuming I've interpreted those 'T's correctly!

    Dom, Dec 28, 2004
  8. daphtpunk

    daphtpunk Guest

    Looking at it again I think they are -1's (the minuses are actually
    above the 1's so it looks like T's).

    So it might actually be..

    SPH -125
    CYL -025
    AXIS 100

    SPH -100
    CYL -050
    AXIS 68
    PRISM "."

    There aren't any decimals though.

    My right eye actually seems worse for both near and distant.
    Does this make more sense?

    daphtpunk, Dec 28, 2004
  9. daphtpunk

    Joe Stella Guest

    I can triple guarantee that you are not -100 or you would be
    walking into walls frequently! :)

    I'm sure there's an "implied" decimal point so it's -1.25
    right and -1.00 left. That would be consistent with your
    previous description of what your vision is like.

    The -1.25 relative to the -1.00 explains why your right eye
    is worse than your left for distance. The astigmatism correction
    seems to be a bit greater in the left eye though so I can't
    exlain why your right eye is also worse for near vision.

    I'm not any kind of an eye doctor though so treat my comments
    Joe Stella, Dec 28, 2004
  10. daphtpunk

    Joe Stella Guest

    If you don't mind, I'm just a little curious -- How do you deal with
    such severe myopia? Do you use progressive lenses? Do you have two
    pairs of bifocals? Or maybe you are still young, so you haven't had
    to deal with presbyopia yet? I am -4.5 and that's trouble enough! :-(
    Joe Stella, Dec 28, 2004
  11. daphtpunk

    Guest Guest

    Why should it seems worse for the right eye, are you simply go for numbers?
    What do you want to ask anyway?
    Your question still makes no sense at all to me.
    Guest, Dec 28, 2004
  12. daphtpunk

    daphtpunk Guest

    Thanks Joe.
    daphtpunk, Dec 28, 2004
  13. daphtpunk

    Dom Guest

    A-ha, that makes a LOT more sense!
    So you're mildly short-sighted, with just a little bit of astigmatism. You
    may detect a slight difference between your two eyes, but really the
    correcting lens required is fairly similar, especially when compared to some
    other glasses wearers out there. If you do perceive a big difference between
    them, it may be that there is some other issue going on which we can only
    guess at.
    Going by the prescription given, glasses and/or contacts would certainly
    help you see far away (driving/TV, etc) but wouldn't really help very much
    for reading close up.
    Dom, Dec 29, 2004
  14. daphtpunk

    Dom Guest

    Well if you have learnt the eye chart and are pretending to read it but in
    fact reciting it from memory, then you aren't 'guessing' at all, you are
    misleading your doctor and obviously this is of no help to either party. I
    don't think this is what the OP was talking about though.

    My point was that if you have a genuine guess at a difficult line and get at
    least some of them right, the optometrist or doctor will know that you can
    only just see them, and will therefore have a better idea of just exactly
    what you can and can't see. We can tell if a patient is guessing or reading
    confidently. If you only read lines that are easy to read and stop when it
    starts to get hard, you are not truely measuring visual acuity. Other
    optometrists or doctors out there might ask their patients not to guess,
    that's up to them.


    Dom, Dec 29, 2004
  15. daphtpunk

    The Real Bev Guest

    You sound like the patient is deliberately cheating in some way, which
    is probably not the case. If you have already memorized the damn chart
    ask to use the non-literate one, which requires you to tell which way
    the E is pointing. Seems like a much better way of doing it, but what
    do I know, I'm just a patient.
    I want to be able to read stuff EASILY, not get a good grade on my eye
    test by squinting and doing eye gymnastics. Why should we have to
    strain to read something?
    The Real Bev, Dec 29, 2004
  16. daphtpunk

    daphtpunk Guest

    Thanks Dom, you are the man!

    One final question, will they give me another test for the lenses
    (seeing as (I think) the card doesn't have the contact lense power on
    daphtpunk, Dec 29, 2004
  17. daphtpunk

    Dom Guest

    Yep they have to check for other things besides the power of the contacts so
    it's normally a separate check.
    Dom, Dec 30, 2004
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