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  1. Replies
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    what temp does it run at? ...

    what temp does it run at?

    https://stanfordmedicine.app.box.com/v/covid19-PPE-1-2
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    Obviously I don't know, which I think is the...

    Obviously I don't know, which I think is the point of your questions. We need to use the information we do know. Which is, that our healthcare systems, and more importantly our healthcare workers,...
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    This is what I did on Monday morning. It seems to...

    This is what I did on Monday morning. It seems to me to be the only sensible, responsible thing to do. I can't believe people are still giving exams and having the public in their stores and clinics....
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    It's all fun and games until it affects you huh...

    It's all fun and games until it affects you huh Fester. smh.

    This comment is about as brilliant as Rep. Matt Gaetz
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    70% Isopropyl alcohol

    70% Isopropyl alcohol
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    Too easy.

    Too easy.
  7. Thread: Eyezen +4

    by Kwill212
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    1,791

    I think you should let Peepers answer for...

    I think you should let Peepers answer for themselves. You can just stay in your lane of sunglasses where the UV falls off, as your answer here was completely unhelpful.
  8. Thread: Eyezen +4

    by Kwill212
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    1,791

    How are these things related?

    How are these things related?
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    1,046

    Epic ...

    Epic or Quest can probably do it in a FT. Multiple pairs still highly recommended.
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    10,646

    Maybe is the lens styles I use, but I have never...

    Maybe is the lens styles I use, but I have never had an availability issue in 1.60.
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    10,646

    Sounds like something someone who has never...

    Sounds like something someone who has never worked in retail would say. The vast majority of the general public doesn't care about the why, the how, or your "added value". Cost, product, convince,...
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    10,646

    Why, that makes no sense. If you run the lab and...

    Why, that makes no sense. If you run the lab and think Trivex is too hard to process, or wears out the equipment too much, either don't offer it or charge accordingly for it.
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    Wow, what a crazy thread. Who knew so many of us...

    Wow, what a crazy thread. Who knew so many of us were willing to die on the hill of OTC readers?!?

    I think everyone here can probably use their best judgment on a case by case basis for what is...
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    Like the others have said it will be up to the...

    Like the others have said it will be up to the state laws.
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    I appreciate the detailed response. Is anyone...

    I appreciate the detailed response. Is anyone using this material in eyeglasses? Is it called polycarbonate by the manufacturer? Seems like you are talking about a completely different material than...
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    10,646

    Where would one source "top-notch poly",...

    Where would one source "top-notch poly", specifically what manufacturer makes it? What makes it objectively "better" than trivex? Again specifics would be great.
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    Uh, am I lost here? Adding BU prism to the OS is...

    Uh, am I lost here? Adding BU prism to the OS is going to increase the near vertical imbalance.
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    Those VAs really beg the question, what is with...

    Those VAs really beg the question, what is with the .5BU prism OS???
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    Well which is it, OC close to the normal gaze or...

    Well which is it, OC close to the normal gaze or OC close to the mechanical center? I normally don't see those two things as be coincident. It would be nice for them to be coincident in this patients...
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    Presumably the patient has always has this...

    Presumably the patient has always has this antimetropia and adding prism thinning isn't going to change that. It will simply move the image slightly up.
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    That is fine. If there is 1D equithin the OD...

    That is fine. If there is 1D equithin the OD would read 1BD and the OS would read .5BD. As long as there is .5D difference in the correct direction.



    They may have misspoke or misunderstood...
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    No. ANSI Z80.1-2015 has a tolerance of 14° for up...

    No. ANSI Z80.1-2015 has a tolerance of 14° for up to a .25 cylinder, 7° for .25-.50 cyl etc. So obviously the axis of the lens doesn't need to match the axis of the seg line to be withing ANSI...
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    https://www.clspectrum.com/issues/1991

    https://www.clspectrum.com/issues/1991
  24. If all you are using it for is to measure curves...

    If all you are using it for is to measure curves the material doesn't matter. If you are using it to calculate power, then you will need to calculate for the index.
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    So it is entirely possible I missed something in...

    So it is entirely possible I missed something in this paper, but I don't see anything to back up "Eyeglasses UV coatings wear off on average in about 1 year for a 4hr/day use, faster in the...
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