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  1. The evidence I have seen suggest the opposite of...

    The evidence I have seen suggest the opposite of the anecdotal opinion represented by many opticians. Opticianry today is more competent than ever before. The past was riddled with limited choices...
  2. More active more fun. Bulletin Boards have...

    More active more fun. Bulletin Boards have become more or less obsolete as a form of social gathering compared to social media.
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    Look up the Izod Impact Strength, this is a...

    Look up the Izod Impact Strength, this is a common value that can be found for many materials. You may have to look through engineering material data sheets and be able to decipher the actual...
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    SOLD - wow and the office paid $100 I refunded...

    SOLD - wow and the office paid $100 I refunded $50 due to the negative comments received I didn't want to cheat anyone.
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    Nah not worth the hassle I'll just throw it in a...

    Nah not worth the hassle I'll just throw it in a box with other equipment. I have just heard it talked about on this forum in high regard I thought someone might actually value it. I didn't know I...
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    Ok let's make it $50, funny how nostalgically...

    Ok let's make it $50, funny how nostalgically it's worth a furtune and anything from that era is golden but the first to devalue it is the old timers.
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    B and L Model 70 Lensometer - $500 OBO

    This is the workhorse of the industry, $500 OBO. Call, text, or email. First $500 takes it.

    harrychiling@gmail.com
    (717)542-1224
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    Sorry for your loss, one mans trash is another...

    Sorry for your loss, one mans trash is another mans treasure. You would be amazed how nostalgic people are combined with the difficulty of finding these items in great condition. It's a no brainer...
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    Grolman Fitting System - $100

    Ok, old timers let the nostalgia sink in. Alright that's enough kicking the tires, first $100 gets a rare Grolman Fitting System still has the extra straps. PayPal only:

    harrychiling@gmail.com
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    What's your email address I can PayPal $50 USD...

    What's your email address I can PayPal $50 USD toward the pair.
  11. Well 98%, made one "oh crap" mistake, the last...

    Well 98%, made one "oh crap" mistake, the last question on blue light needs the answers improved.

    Blue Light Lenses protect from HEV - High Energy Visible Light

    The options were

    1 - CFL...
  12. In-depth prism questions - unless the BASIC ABO...

    In-depth prism questions - unless the BASIC ABO has changed I would say no. Most of the prism questions on the basic test are fairly simple and can be calc'ed without a calculator going more...
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    V2799 - Misc vision item or service Search...

    V2799 - Misc vision item or service

    Search them here: https://makeoptics.com/harrychiling/blog/posts/health-codes-procedure-codes-hcpc
  14. If people like this kind of thing the OpenOptix...

    If people like this kind of thing the OpenOptix Study Guide is the reference material:
    OpenOptix (study guide, modified)- https://makeoptics.com/harrychiling/blog/posts/abo-study-guide
    (You might...
  15. I did the same thing I got that wrong because I...

    I did the same thing I got that wrong because I thought it was the specified axis of the prescription in the question before. I also get a few of the prism questions wrong because I quickly calced...
  16. 92% in less than 20 min Good test, a few things....

    92% in less than 20 min Good test, a few things.

    29 - scored wrong I had the right answer
    30 - the answer in the test is wrong
    40 - questionable answer
    73 - the answer in the test is wrong

    I...
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    mini-bevel setting would help.

    mini-bevel setting would help.
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    12783 It's a good day to treat yourself to a...

    12783

    It's a good day to treat yourself to a Royal with Cheese!
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    It is available in the play store as an app on...

    It is available in the play store as an app on android, then I have the Web version available on my site. The donations go to Darryl's family, many of the programs were created from knowledge I...
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    Nice, that's why I step on your shoulders so I...

    Nice, that's why I step on your shoulders so I can appear to be a giant! :biggrin:
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    We can simplify the first part of the problem,...

    We can simplify the first part of the problem, +7.00DCx135/+9.50DCx45:


    +9.50 -2.50 x 135
    (+) -3.50
    ------------------------
    +6.00 -2.50 x 135


    Now your question is what gets...
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    Too busy, I lost my voice we gave so many...

    Too busy, I lost my voice we gave so many presentations the love and support we were shown was truly beyond what I could have imagined. Thank you to everyone that took time out with us and I felt...
  23. I would offer but I let the NCLE-AC lapse.

    I would offer but I let the NCLE-AC lapse.
  24. I would think once you got the hang of it,...

    I would think once you got the hang of it, putting in coordinates would't be too difficult, but it's going to be cumbersome at first. I worked with one in an office a few years back filling in and...
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    I discussed the topic and a solution in a prior...

    I discussed the topic and a solution in a prior thread from some time ago, even provided an excel spreadsheet and solution for using differeing segs in PAL's, it's a controversial subject so I am...
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