cyl axis question

Discussion in 'Optometry Archives' started by daysleeper, Oct 30, 2003.

  1. daysleeper

    daysleeper Guest


    I have a simple question for all of you optical experts.

    If I can see horizontal lines fine, and vertical ones blured, what would
    the cyl axis orientation be (assuming you write prescription im "minus
    cyl" notation)?

    daysleeper, Oct 30, 2003
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  2. daysleeper

    S Akky Guest

    daysleeper put fingers to keyboard and typed...
    This is called 'against-the-rule' astigmatism and the minus cyl axis
    would be vertical.
    S Akky, Oct 30, 2003
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  3. daysleeper

    daysleeper Guest

    You're right. I guess I should have added that I was talking about
    myopic eyes looking at distance.
    Can you tell me why is it called "against-the-rule"?

    Thanks to all of you who were kind enough to answer my question!
    daysleeper, Oct 30, 2003
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