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Thread: Random Questions

  1. #1
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    Wave Random Questions

    Drawing a blank on a few things if anyone is willing to help.

    I typically use a fishing line for restrings. What gauge is it again?

    The Lindberg syringes, I typically order from a third party. What gauge is it again?

    I typically use poly, trivex, 1.67 for grooves. Right now I'm in an office where they use a lot of 1.60 for grooves, I was under the impression that chips easier. Thoughts?

    Thanks for helping!


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    I use 30lb mono, should be .50-.55mm diameter depending on manufacturer.

    I do tons of Lindberg, never used the syringes. They always seemed like a PITA to me. I'm sure if you ask your Lindberg rep they will send you ton of them at no charge.

    Never had any more issues with 1.60 than with 1.67. I won't use poly. Trivex is obviously king for drill and groove mount.

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    1.60 has way more tensile strength than 1.67. Better abbe value too. Definitely trivex for drills, with the appropriate Rx.

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    Hi, I am a new optician and have a question. I was using the pupilometer to take a persons PD and they were apparently seeing two dots, so what I did was i moved the knob on the pupilometer from the infinite sign to 100, when I did that he said he saw it better and only saw one dot. So what I want to know, is that, is this is correct or should I have just left it on the infinity section and gotten him to focus on one of the dots? Thank you for any information you are able to provide.

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    Quote Originally Posted by Kwill212 View Post
    I use 30lb mono, should be .50-.55mm diameter depending on manufacturer.

    I do tons of Lindberg, never used the syringes. They always seemed like a PITA to me. I'm sure if you ask your Lindberg rep they will send you ton of them at no charge.

    Never had any more issues with 1.60 than with 1.67. I won't use poly. Trivex is obviously king for drill and groove mount.

    how do you get the glue into the holes?

  6. #6
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    Put a dab of glue on the pin and push the pin into the hole. Just like I would glue anything else together.

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    Quote Originally Posted by Oscar View Post
    how do you get the glue into the holes?
    Was thinking the same thing myself.

    Putting glue on the pin doesn't spread over the lens when inserted? I may have to try this method... glue needles cost a small fortune.

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    Quote Originally Posted by merrymaker View Post
    Was thinking the same thing myself.

    Putting glue on the pin doesn't spread over the lens when inserted? I may have to try this method... glue needles cost a small fortune.
    Yes, a minuscule amount of glue might get on the lens. Wipe it off. This isn't rocket surgery here. I use the permanent loctite glue for trivex lenses and the Air Lock glue for high index lenses, sometimes permanent on high index depending on the time table. I do not use the syringes of UV glue and ridiculous lamp.

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    Quote Originally Posted by Kwill212 View Post
    Yes, a minuscule amount of glue might get on the lens. Wipe it off. This isn't rocket surgery here. I use the permanent loctite glue for trivex lenses and the Air Lock glue for high index lenses, sometimes permanent on high index depending on the time table. I do not use the syringes of UV glue and ridiculous lamp.
    i found perma loctite the messiest to work with. wiping ends up spearing it every where :(. it's also incredibly strong.. what do you do when the px wants to change the lenses or you have to redo them?

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    Quote Originally Posted by Oscar View Post
    i found perma loctite the messiest to work with. wiping ends up spearing it every where :(. it's also incredibly strong.. what do you do when the px wants to change the lenses or you have to redo them?
    I use the Lindberg glue remover if I need the lenses intact. This usually takes overnight so the patient must leave the frame. Or if the patient doesn't care what happens to the lenses, pull them apart with the flat/round snipe. You can heat them a little to loosen the glue if you need to. Also REDO is a 4 letter word around here.

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    Quote Originally Posted by Zmzj01 View Post
    Hi, I am a new optician and have a question. I was using the pupilometer to take a persons PD and they were apparently seeing two dots, so what I did was i moved the knob on the pupilometer from the infinite sign to 100, when I did that he said he saw it better and only saw one dot. So what I want to know, is that, is this is correct or should I have just left it on the infinity section and gotten him to focus on one of the dots? Thank you for any information you are able to provide.
    Zmzj01, the dial on the pupillometer is used to determine a focal distance and its corresponding PD value. The infinity symbol denotes optical infinity (basically, far distnance beyond 6m), when there's no pupillary convergence so the PD measurement will be at its widest point. Since a patient's pupils converge when they focus on something at a closer focal length, you'll notice that the PD measurement will become a little narrower. If you turn the dial down to 40 (this denotes a focal distance in cm, so ~16 inches for near work) and measure that same patient, you'll see a lower PD value.

    Note that for most orders, you'll always want to keep the value at infinity for all far PD values of PALs, multifocals and/or SV distance orders. Basically, that dial should match the focal distance being requested.

    30/40 (11"-16")= Near
    65/100 (26"-40") = Intermediate

    Also of note, some lens designs automatically optimize PD convergence based on the distance PDs taken. For example, if I ordered an office lens (like a Shamir Computer) for a patient, the lab will take the far PDs (let's say 31.5/31.5) and convert them to an intermediate PD (something like 30.5/30.5) based on the lens' respective algorithm. It wouldn't hurt to ask the lab that you work with to ask if they optimize or make these conversions for you on certain designs.

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