howto take the peripheral vision test??

Discussion in 'Eye-Care' started by plew, Dec 5, 2005.

  1. plew

    plew Guest

    I am wondering how I should take the peripheral vision test.
    For example, I "normally" slightly strain to see/perceive any
    flash of light no matter how dim.

    Should I just be "relaxed" & not strain to see any flash
    at all even if some/many are missed?

    I've been setup for my annual vision test in about 2 1/2 months
    & wonder if I've been doing the vision test incorrectly as now
    I think the real idea is how my vision is doing when not strainning
    to see.
    plew, Dec 5, 2005
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  2. plew

    gudrun17 Guest

    Just relax. I've had many visual field tests and after you've had a
    number of them, you realize that a lot of things can affect the test
    and the doctor should know not to put that much faith into one single
    test but should be looking at a series of them. It's normal for people
    to want to "do well" at visual field tests and try to concentrate hard
    on seeing every light, but I've had some in which my attention wandered
    (or the tech distracted me) and I know I missed some lights, but it
    didn't make any real difference in the outcome. The test will give a
    reading as to the number of false negatives and false positives and if
    these numbers are too high, the test is invalid--in which case the
    doctor will have you repeat it at some other time. But even with a lot
    of errors (not my fault--due to tech's mistakes) I've never had a test
    with so many errors that it wasn't still within the valid range. Don't
    worry too much about those tests.
    gudrun17, Dec 5, 2005
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  3. plew

    CatmanX Guest

    Firstly, a fields test is a waste of time unless there is a suspicion
    of anything wrong. Is there family history of glaucoma? Have you had a
    stroke etc.?

    FIeld testing is actually pretty easy and something not to stress over.
    If you think you saw a flash, you did, so click the button.

    I have recently started using a Zeiss Matrix which is the easiest and
    quickest test I have ever performed. It takes 5 minutes for a full
    threshold test and 1 minute for a screening. You can do it without
    glasses and the accuracy is incredible and my patients find it very
    straight forward.This instrument will detect glaucoma 3 years earlier
    than regular field tests and is great for patients with a family
    history of glaucoma as it will detect so much earlier and put them at

    So don't stress, you will do worse on the test. Relax, go with the
    flow, if you make a mistake, the computer will think it is suspicious
    and retest that spot.


    dr grant
    CatmanX, Dec 5, 2005
  4. plew

    plew Guest

    Firstly, thanks everyone for the info; looks like I was doing
    the vision field test "wrong"; maybe I should also relax & be
    comfortable on the eye test for glasses.

    I've been doing the field tests annually as per the eye doctor as it
    looks like I'm on the border for cataract surgery; hasn't bother me
    as yet & the tests were supposed to aid in finding when there is
    enough deterioation(?).

    Some of us don't have a family history.
    I don't know what the machine is but the tech places the lenses for
    my prescription in a holder for me to see during the test; I have to
    look at the "red dot" during the testing & slight movements away will
    be detected & a beep sounds.

    I do appreciate the quick replies as I had to reschedule the test since
    it is supposed to take place 1/2 hour after my dental/peridontal visit;
    didn't think I could make it. The new schedule is much close to the
    present as in 3 days from now instead of 2 months away.

    I will try to relax & not stress BUT my history is that the blood pressure
    goes way up when going to see any doctor or dentist and even just to pick up
    my prescription medicenes; probably a phobia of "seeing" a doctor & having
    them find something wrong. :)
    plew, Dec 6, 2005
  5. Yes, relax and ask if the machine will "time out" on demand. (Mine
    suspends the test if you hold the button down until you let it go again,
    so you can rest, blink a lot, etc. It picks back up where it left off
    when you release it).

    w.stacy, o.d.
    William Stacy, Dec 6, 2005
  6. plew

    Dan Abel Guest

    Hope that helps. I hate taking those things, although they seem a
    little easier now.

    I'm a lay person, and no expert here, but that isn't my understanding.
    I don't see how a field test will help detect cataract progression. The
    doctor just dilates your eyes and looks inside. If they can't see
    inside, that means you can't see out, either, and that points to
    cataract. If you have vision loss, and the doctor can't see into your
    eye, I don't think it takes much else to diagnose.

    I don't have it quite that bad. I can usually pick up a prescription
    OK, although I was a little concerned about what the price would be last
    time. It was fine, though. But every time I have my blood pressure
    taken, it goes up. I go through the same routine most times. It's too
    high. I talk to the doctor for a while, and I relax. They take it
    again, and it is down.
    Dan Abel, Dec 7, 2005
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