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  1. Replies
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    You did find the OC. It's sometimes said that a...

    You did find the OC. It's sometimes said that a plano lens has no OC, but really a plano lens has an infinite number of OC's.
  2. Thread: I'm in a fog

    by finefocus
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    7,882

    Trying to get a good seal once the mask is on is...

    Trying to get a good seal once the mask is on is difficult. Before you put it on, bend the strip around your finger to reproduce the shape of your schnozz at the stop, not lower. Be sure to spread...
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    Where does it say that you cannot become a...

    Where does it say that you cannot become a manufacturer of optical goods; chains, cases and/or magnifiers and readers? So become a manufacturer, sell the readers to yourself, and sell them to the...
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    Important: Our shop is attached to an old medical practice,...

    Our shop is attached to an old medical practice, and we have to do service stuff that retail-based businesses don't, to wit: I just ordered a half-pair of temples from Charmant and they have them !!...
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    Important: No firm dates yet - check californiacareforce.org

    No firm dates yet - check californiacareforce.org
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    Important: Love to have you - how about Coachella in March?...

    Love to have you - how about Coachella in March? Also coming up Grass Valley, Monterey, Chico and more.
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    Important: Grass Valley will be Jan 11 & 12 --- if you are...

    Grass Valley will be Jan 11 & 12 --- if you are available for the 2 days before and/or the day after, that would be great also for set-up and breakdown --- plenty of donkey work in addition to...
  8. In the 50's and 60's, you went to Optometry...

    In the 50's and 60's, you went to Optometry School on an AO scholarship, bought AO equipment (yes, a lensometer, not a vertometer from B&L) and AO waiting room furniture, got your lab work from an AO...
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    Important: BUMP ALERT We just finished our Sacramento...

    BUMP ALERT
    We just finished our Sacramento clinic - Thank you Fatesjoke and Mindy for your help - Our next is Grass Valley in January - anyone who would like to come would be much more than welcome.
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    DRK would say (correctly) use the 1/8 diopter...

    DRK would say (correctly) use the 1/8 diopter answer (0.87) in the vertex formula.
  11. As optical 24/7 says, that is the thickness 27 mm...

    As optical 24/7 says, that is the thickness 27 mm from OC - which is to say straight down to the bottom edge, but not to, say, the lower temple corner - that would be more than 27 mm from the OC...
  12. First of all, the effect would be seen along the...

    First of all, the effect would be seen along the vertical, whereas the thickness on the horizontal is more commonly the big issue. But you can dot the position of the proposed OC, measure the...
  13. Thread: Tumblers

    by finefocus
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    And when cellulose nitrate was found to be a...

    And when cellulose nitrate was found to be a dramatically bad idea, the moniker of "zyle" was transferred right over to cellulose acetate.
  14. For the benefit of less-experienced opticians,...

    For the benefit of less-experienced opticians, who may not have seen much Optyl, you heat it until it feels boneless, soft and very pliable. Bend it to any shape, let it air-cool, and it will hold...
  15. So this isn't Optyl, but if it were you would use...

    So this isn't Optyl, but if it were you would use lots and lots of heat, not a little.
  16. [QUOTE=drk;554519]My optician asked a good...

    [QUOTE=drk;554519]My optician asked a good question, and I think I gave the right answer. But I thought it would be a good brain exercise for Optiboard.


    Q: What is the benefit of "digital"...
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    Important: I'm bumping this again, looking for anybody who...

    I'm bumping this again, looking for anybody who might volunteer for our Chico clinic (mainly for Camp Fire victims from Paradise). August 3rd and 4th, with a couple of days before to set up...
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    Important: Good to hear, GAgirl. What group are you going to...

    Good to hear, GAgirl. What group are you going to help, and where is the clinic? I hope you have a lot of fun; maybe you can join us also sometime.
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    Important: Lori, so nice to know I'll see you again Fred

    Lori, so nice to know I'll see you again
    Fred
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    Important: We demand that anyone who can reach Coachella in...

    We demand that anyone who can reach Coachella in 16 hours driving time or less, show up; it may be that having to fly in from Saudi Arabia will get you a pass. Thanks for the thought anyway.
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    Important: Time for me to bump this again - this year's...

    Time for me to bump this again - this year's Coachella clinic will be March 22-24 at the Riverside County Fairgrounds (actually in Indio). If you can make it, we would really like to see you. Can...
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    Any chance that your measurements are with "table...

    Any chance that your measurements are with "table posture"? You induce "normal" posture by controlling the patients chin angle while seated, when the patient actually is a chin-up kind of person....
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    Will these lenses tint edge-to-edge (making you...

    Will these lenses tint edge-to-edge (making you look like you've had some really good drugs), or in an iris-sized spot like cosmetic contacts (leaving the limbus uncovered)? Will the activation be...
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    Important: Thank you - hope to see you there!

    Thank you - hope to see you there!
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    Important: Thank you - we'll see you in Coachella in March,...

    Thank you - we'll see you in Coachella in March, I hope. The website ( CaliforniaCareForce.org ) has the details. It's great fun, and genuinely useful to humanity.
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