Learn from Your (My) Mistakes: Millimeters Matter
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(silly music) (upbeat music) – Hello and welcome to the Laramy-K OpticianWorks
Training Center. Where today I want to talk a little bit about why it is so important
that you be careful when you’re calling your job into the lab. Double check everything. If they read it back to you,
listen really carefully. Make sure that your work
is kept neat and organized. I made a mistake here. And you know, it wasn’t really a big deal. It was a pair of glasses for a friend. No money was exchanging hands. But, I should know better, I should do better, and no excuses. – [Homer Simpson] Doh. Doh.
Doh. Doh.
Doh. – I really screwed up and I thought, wow, what a perfect, teachable moment. A couple of weeks ago I called in three jobs for the same person, and I ended up reusing the frame data from one of the frames that
should’ve been a different one. What did I do wrong? Let’s take a look. I’ll put those up on the screen for you so you can see it real clear. Now first of all, somehow my heights
should’ve been 24 and 21. Sadly they were entered as 24, 24, so there was the first error. Only a couple of
millimeters, but you’ll see that it makes a big difference. My frame A was 53, my job I called in, I said the B was 27, much, much narrower, when in reality, it was a 35. That in turn should’ve stretched my ED. My ED only came out at 54 because of that. Instead my ED’s actually 59, a good couple of millimeters there. Now, this is the important part, look at how little difference
there is between those two. These are the garbage that I created because I screwed up. Those are the ones that actually cut out. Now, why is it such a little tiny, tiny little bit of difference? Well remember, we are doing freeform, we’re surfacing these, and we are inputting and working directly off of the frame shape
and the frame dimensions to make sure that we get the lens as thin as we possibly can. So, just that little tiny
bit of error on my part when I was calling that job in, left me with two pieces of garbage, had to delay the job,
call it in, figure it out, sort it out, get these in,
and now I should have cutout. Let’s find out if I do. Here is how it’s supposed to work. Look at how close that feeler
comes to that lens edge. It’s perfect. It’s large enough to cut out, but as small as it possibly can be for that frame and lens combination, so it is as thin and as light
as possible for my customer. There, that’s better. Thank you so much for watching, I do hope you found
something useful there. Remember, to get the absolute thinnest and lightest lenses possible, make sure that lens comes from Laramy-K. If you’re watching me on Facebook, please give me a like, leave me a comment. If you’re watching this on YouTube, please hit that Subscribe
button down there, it really does help us out. I will see you again next week.

4 thoughts on “Learn from Your (My) Mistakes: Millimeters Matter

  1. gosh! i know how that is making a mistake like that is so easy. what i found out that works for me is highlighting what i've measured and if its off ill right the proper FPD or B measurement and highlight the new one. sorry about the run on sentence. haha!
    thanks Mister K, your videos are always helpful and informative Keep up the great work:)

  2. Hello sir, I have seen many of your videos and they are so educational. I liked them very much. I want to know that did you make any video about retinoscopy, if not, please can you make videos on how to work with retinoscoe and how to find power and axis of astigmatism

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