vision correction for dim satellites

From: Judy May (
Date: Wed Sep 14 2005 - 12:14:08 EDT

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    A few issues ago, Sky & Telescope ran a lengthy article about night
    myopia, a possibly common phenomenon which can adversely affect dark
    adapted eyes from seeing the dimmer objects in the sky that would
    otherwise be obtainable.  The author (and the editor) asserted that when
    corrected using an eyeglasses prescription the faintest magnitude
    visible without magnification is definitely improved.
        I was skeptical, but I love doing experiments, so I ordered a set of
    optician test lenses (called flippers) that could be used in the field. 
    Well, when I tried them out, I was astounded!!  I could definitely see
    stars using correction that were not visible without them.  And the
    image of all stars were improved.  I will be conducting more tests in
    the future to determine exactly which correction factor I need for my
        This seems like an important aspect in attempting to observe those
    satellites that approach the limiting magnitude of visibility.  I would
    like to know if any of you have conducted experiments with night myopia,
    if you have found correction helpful, and if so, what factor of
    correction you decided upon.
             --- Judy   W1ORO
       _~O  __O        Judy May       
    (*)/---|/-(*)      Life is a journey ...    Enjoy the ride!
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