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Thread: RX Master

  1. #1
    OptiBoard Novice
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    For sale or trade older model A.O. RX Master Phoroptor (+) cylinder wanting (-) cylinder

    [This message has been edited by ginny (edited 12-18-2000).]

  2. #2
    Master OptiBoarder
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    What's an RX master? (and that is a real question, I'm from england, and I don't think we have those)

    ------------------
    Maria "no amusing quote" K

  3. #3
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    "Rx Master" is simply American Optical's brand name for their phoropter (you know, the thing the refractionist swings in front of your face then clicks away with all those lenses). B&L's most famous brand of the same gizmo is the "Green's Refrafctor". Phoropters can come in plus cyl or in minus cyl; for some reason MD's prefer the plus cyl, while OD's use the minus cyl. What brands do they use in England?

    Larry

  4. #4
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    We don't have one, we have a man with a trial case! His name is Gerard.

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    Maria "no amusing quote" K

  5. #5
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    Wow. Haven't seen someone use just trial lenses for about 12 - years. Used to work with an M.D. who didn't even own a phoroptor, just used trial lenses (drove some of the younger docs who worked in his practice crazy, as he refused to spend the $$$ for a phoroptor in any of his four exam rooms). He was amazingly fast with them, would have as many as five lenses in each hand. Always thought he should have been a professional presdigitator, but that probably wouldn't have paid nearly as well.

    Larry

  6. #6
    Master OptiBoarder Texas Ranger's Avatar
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    They used plus cyl. phoropters and trial lenses back when rx lenses were actually ground with the cylinder power on the "front" side of the lens; minus cylinder exam lenses came along when lenses were no longer ground on the front side and became back, ocular surface ;or minus cylinder lenses. as far as i'm concerned I wish all of the docs would throw away their plus cyl units; you really can't expect a plus cyl rx to be fabricated in minus cyl form and have the pt see the same as in the exam; not possible!

  7. #7
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    Redhot Jumper

    All our permanent optoms use trial lenses, and none of the locums have a problem with it. I think it might be more of a British thing. I use trial lenses for the hand neutralising section of my course, which has already been laughed at on the board. :)
    Maria 'If you can play cards, you can hold 5 trial lenses' K

  8. #8
    Master OptiBoarder Texas Ranger's Avatar
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    Maria, now how do you know you're at 27 degrees on a 0.25 cylinder? you know some pts are so precise!

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