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Thread: Take a Master Exam

  1. #126
    ABOM Wes's Avatar
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    Quote Originally Posted by onthegrind View Post
    Ans for Ques 17 is a) 71mm. Reason: MBS = (frame PD/geometric center distance - person PD) + ED. mbs = ((54 +16) - 64) + 64. mbs = (70-64) + 64. mbs = 6 + 64 = 70. 71mm is within 1mm tolerance

    Nope. You didn't account for the 1.5 diopters of base in prism in the Rx. You'd decenter each eye OUT from the PRP/Patient PD to induce the prism, making the blank requirement 6mm LESS than what you calculated.

  2. #127
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    yeah, i see it. one of those questions where the answer is more than just the formula.

  3. #128
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    Wow, what a thread this is, refreshing my memory. I really need to study

  4. #129
    Rising Star Lori's Avatar
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    Here are the 2 Level 3 courses I wrote to obtain my ABO Master certification. You can follow the links and take the courses for CE credits. ABO approved my ABOM certification last week so it's official!

    https://www.2020mag.com/ce/achromatopsia

    https://www.2020mag.com/ce/anisometropia

  5. #130
    ABOM Wes's Avatar
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    Congratulations!
    Wesley S. Scott, MBA, MIS, ABOM, NCLE-AC, LDO - SC & GA

    “As our circle of knowledge expands, so does the circumference of darkness surrounding it.” -Albert Einstein

  6. #131
    Master OptiBoarder optical24/7's Avatar
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    Congrats on the “M” Lori. 2 excellently presented papers.

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