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  1. Although OA is an aberration that causes blur...

    Although OA is an aberration that causes blur towards the periphery of the lens, in this instance we are talking about 'unwanted surface astigmatism' that without exception, can be found around the...
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    Two ducks are walking down the road. One of the...

    Two ducks are walking down the road. One of the ducks says "quack". The other duck says: "OMG, I was going to say the same thing!"
  3. They can't. But then these are not general...

    They can't. But then these are not general purpose PALs- the distance has about +0.75 D of the add power, reducing by the same amount the degree of progressivity, reducing the unwanted astigmatism...
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    My brother has Parkinson's disease also- really...

    My brother has Parkinson's disease also- really tough going depending on how advanced it is.

    Not so sure about the term 'golden years'. Oh well.

    Robert
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    Yeah, that's the one. My wife's nephew said he...

    Yeah, that's the one. My wife's nephew said he always wanted a vintage SG, and will give me one of his kidneys for it.

    Tasty? You speak my lingo. My solos are usually heavily improvised so that...
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    So sad. Maybe the loss of spatial awareness...

    So sad. Maybe the loss of spatial awareness and/or tremor. Being unable to zero in on ones mouth to eat, oh my.

    I hope he's not alone.

    Robert
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    Rough sex?

    Rough sex?
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    To protect against the loss of precious ocular...

    To protect against the loss of precious ocular fluids from communist infiltrators?


    https://www.youtube.com/watch?v=iAHJCPoWCC8
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    “I can't shake the feeling that all these...

    “I can't shake the feeling that all these conspiracy theorists are in on it.”
    ― Wynne McLaughlin
  10. If there's no patho then no need for any darker...

    If there's no patho then no need for any darker than coated brown polarized. Check that there's a very good light seal around the eyes, fit close and sufficiently large for full coverage, especially...
  11. Yes. See post #29, reflection #4. Read and learn....

    Yes. See post #29, reflection #4. Read and learn.

    Robert
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    Secret Agent Man 1984 Last of my favorite...

    Secret Agent Man 1984

    Last of my favorite female vocalists, and definitely the best I've worked with professionally.


    https://www.youtube.com/watch?v=zUuoh-SvCho
  13. Sigh.

    Sigh.
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    Bettye LaVette - Heart of Gold 2012 ...

    Bettye LaVette - Heart of Gold 2012


    https://www.youtube.com/watch?v=Xh3fLJ7WDQ0

    Aretha Franklin - I Say a Little Prayer 1970


    https://www.youtube.com/watch?v=Dq7hqetbw94
  15. The differential geometry quote I probably swiped...

    The differential geometry quote I probably swiped from Darryl M., as I typically only steal from the best.

    ECP,

    There's a typo on the compensated right cylinder sign.

    That is a lot of...
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    James, Knight, and Khan - Ain't Nobody Business...

    James, Knight, and Khan - Ain't Nobody Business 1987

    The wife said "more female vocalists please, what do you have?"


    https://www.youtube.com/watch?v=MoBlmp9cOL4

    Freeze frame looking over...
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    Fairly plain-speak on viruses and why we urgently...

    Fairly plain-speak on viruses and why we urgently need to reduce transmission, with links to the harder science, the latter maybe for those with microbiology training.
    ...
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    All foam and no beer. They haven't made a...

    All foam and no beer.

    They haven't made a profit since day one.

    https://www.fool.com/investing/2016/06/05/how-does-warby-parker-make-money.aspx

    That's how disrupters and pirates work-...
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    At first I didn't think there was a five add...

    At first I didn't think there was a five add photochromic, but it looks like you might be able to get it from X-CEL. Give them a call to see if there's any left in the base you need.

    Good luck,
    ...
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    That's a pretty wide variance between what the...

    That's a pretty wide variance between what the prescriber used for object distance (20") and what you or the client says is 30". You'll need to firm that up some before proceeding.

    The only way...
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    The left cylinder power on probably the second Rx...

    The left cylinder power on probably the second Rx has an error. If true, and the +2.00 add is for 16", use about +1.00 for the 30" work distance, and about +4.00 for the equivalent of spectacle...
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    Tina Turner - Proud Mary 1972 Very few "live"...

    Tina Turner - Proud Mary 1972

    Very few "live" performances on Soul Train after '72.

    Professionally recorded by some of the best recording engineers and technicians in L.A. (check out the tone...
  23. We should aim for a pupil center position about...

    We should aim for a pupil center position about 4mm above center, the center being the 180/datum line, that is, the midpoint between the boxed topmost and bottommost part of the lens, regardless of...
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    Janis Joplin - Maybe 1969 (The Ed Sullivan Show)...

    Janis Joplin - Maybe 1969 (The Ed Sullivan Show)

    Joplin sings to the silent majority.


    https://www.youtube.com/watch?v=CMr_U9Ufsh8
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    Linda Ronstadt - La Charreada 1989 ...

    Linda Ronstadt - La Charreada 1989


    https://www.youtube.com/watch?v=Q-fvsnLocBM
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