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Thread: Prism help

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    Prism help

    hey guys, i'm seeing a Rx as follows - SPH, CYL and AXIS are normal but on the prism section i see 1.50 OT. can anyone explain to me what the hell is OT?

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    A sloppy OD’s shorthand for Base Out?

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    My Brain Hurts jpways's Avatar
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    Our EHR makes us order prism UP, DN, IN, and OT when using vision web, I don't know who came up these standards, but obviously it's taught somewhere, So yes OT is Base Out

    Though one reason might be for Drs. have really bad handwriting and you can't differentiate BO and BU, it would eliminate that confusion (but really this is a weak reason)
    Last edited by jpways; 09-27-2018 at 03:15 PM. Reason: stutter

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    Thank you all guys...i was leaning the BO way myself. People seem to be inventing their own standards...weird.

  5. #5
    One eye sees, the other feels. OptiBoard Gold Supporter
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    Quote Originally Posted by onthegrind View Post
    hey guys, i'm seeing a Rx as follows - SPH, CYL and AXIS are normal but on the prism section i see 1.50 OT. can anyone explain to me what the hell is OT?
    Might mean out total, but BO is correct.

    https://onlinelibrary.wiley.com/doi/...8702871.abbrev

    Best regards,

    Robert
    Roberts Optical Ltd.
    Wauwatosa Wi.
    www.roberts-optical.com
    ~~~~~~~~~~~~~~~~~~
    Science is a way of trying not to fool yourself. - Richard P. Feynman

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