3 opticians 3 different prescriptions - advice please

Discussion in 'Optometry Archives' started by intothebin, Jul 9, 2005.

  1. intothebin

    intothebin Guest

    4 weeks ago I had an eye test giving
    R 0 -0.75 10
    L 0.25 -0.75 180

    I am now overseas where I can get glasses for 1/4 price but thought I
    would have a double check on my eye test, resulting

    R -0.50 -0.50 5
    L -0.50 -0.50 180

    being somewhat concerened at the difference though bearing in mind I
    was pretty tired/jet lagged I left it a couple of days and went
    elsewhere with the result:

    R -0.25 -0.75 10
    L -0.75 -1.25 0

    Are these differences within normal tolerance, are my eyes changing
    daily or are the opticians incompentent?

    I do find that I get double vision at times, even during the test. Is
    that down to my astigmatism and being better able to accommodate it
    some days than others?

    Many thanks.

    intothebin, Jul 9, 2005
    1. Advertisements

  2. intothebin

    Dr Judy Guest

    The variation is larger than expected. Did you have subjective refraction
    (the old 1 or 2 routine) or were these auto refractor readings? Were any of
    the refractions done with cycloplegia (eye drops that blur near vision an
    make your pupils large)?

    A subjective refraction under cycloplegia would be the one to believe.

    Dr Judy
    Dr Judy, Jul 10, 2005
    1. Advertisements

  3. Is the unsigned left sphere is really a "-" (minus) as opposed to a "+"
    the 2.5 add might be appropriate if you are
    1. over age 55
    2. have less than 20/20 best corrected acuity
    3. have an unusually near close working distance.
    Now this one is most likely wrong on the left eye, unless the left eye
    is way worse than the right without glasses, and about the same with
    that Rx in place, in which case it might be the correct one (doubtful).
    They are not, and one or more may be less than competent, or you could
    have an unusual problem or you could have had a bad day with the jet lag.
    If you get double vision with one eye closed or occluded (covered up),
    it's the astigmatism (or cataract, or corneal problem, etc. This is the
    problem with 2nd guessing these guys.) If it's only with both eyes open,
    it's something else entirely (binocularity/alignment problem).

    Get one more exam on a day that you are feeling fresh, and before you do
    any serious close work. Hopefully, the result will agree pretty closely
    with one of the above!

    w.stacy, o.d.
    William Stacy, Jul 10, 2005
  4. Which Country did you have this done?
    Which Country did you have this done?
    In some countries optometrist are not licenced and training is not needed
    for practice.
    Philip D Izaac, Jul 10, 2005
  5. intothebin

    intothebin Guest

    All the tests were subjective but none of the tests used eye drops.
    I've never come across this. Previous eye tests have been done in the
    UK either with large chemist group (Boots), independent optician or
    optician chain. The first result is Boots.
    intothebin, Jul 10, 2005
  6. intothebin

    intothebin Guest

    See - I need new glasses :)
    It should read

    R 0 -0.75 10
    L -0.25 -0.75 180
    Afraid so
    Only the first test made any mention of acuity, giving
    Distance 6/6 and Near N4 for both eyes
    Just covering my eyes with my hand as I type this my left eye is
    Double vision more with my right eye but that occured in the second
    intothebin, Jul 10, 2005
  7. intothebin

    intothebin Guest

    Correction - should read
    L -0.25 -0.75 180
    Boots the Chemist UK.
    Indonesia for both other tests.
    I'm not sure what the situation is with the two tests I've had done
    intothebin, Jul 10, 2005
  8. Indonesia is one of the countries which I think does not have good control
    over the practice of optometry. If you still want to make your spectacles
    there It would be a good idea to use the prescription from boots. Ask the
    practitioner to place the Prescription in a trial frame (Distant then near)
    and make sure you can read well at near and have good distant vision.
    Philip D Izaac, Jul 11, 2005
  9. intothebin

    intothebin Guest

    Thanks Philip. However I had a further test at a different optician
    and really went through things slowly with double checking at each
    stage. In the end he agreed with the previous optician who basically
    said there was little difference between the tests and my existing
    prescription. In other words they were not trying to sell me a new
    pair of glasses and I wonder whether Boots were (and they most
    certainly shouldn't have been).

    Certainly when this (last) Indonesian optician tried me out with the
    reading correction recommended by Boots the results were less clear so
    I've gone ahead his prescription. One important input from this thread
    (w stacy) was the comment not to try each eye separately on the final
    prescription as the astigmatism comes into play and the prescription is
    based on both eyes working (AIUI).

    Also I've now had a couple of proper nights sleep and am getting over
    the jet lag. Finally I'm having another pair made specifically to work
    on the computer (16 - 18") and hopefully this will reduce my posting
    errors and programming errors :)

    Many thanks to all for your help.
    intothebin, Jul 11, 2005
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.