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    Well yes, asymptomatic patients definitely don't...

    Well yes, asymptomatic patients definitely don't need correction. But what if the only symptom is just a slight discomfort or a minimal head tilt?
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    Should mild phorias be corrected?

    I've seen doctors who prescribe prisms to at least 50% of their patients and other who think even moderate phorias need no prism correction at all.

    At what point would prisms be useful? Does it...
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    Meaning of "worn addition"?

    Since last week Hoya Mystyles arrive specifying the worn addition. Example below. What exactly do these numbers mean? Is the actual addition 2.22, 2.28 or 2.50? I ordered these for a vertex distance...
  4. I know this is late but I would check if she...

    I know this is late but I would check if she lifts her chin while measuring the fitting height. I'd also compare the vertex distance between the new and old frame.
  5. Thread: Computer PAL

    by Airegin
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    Hoya Workstyle Zoom and Screen are fantastic....

    Hoya Workstyle Zoom and Screen are fantastic. I've also used Hoya Sync 3 0.57 with great results for those people whose computer screen is very high up and close.
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    Both clients returned for adjustments after about...

    Both clients returned for adjustments after about a month and complemented me on how good their glasses were compared to their previous pairs. I lowered the fitting height 1mm, otherwise the...
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    Very helpful, thank you. Do you put happen to...

    Very helpful, thank you. Do you put happen to know how Hoya and Polyvore apply UV400 in their CR-39 sun lenses? And Ray-Ban in their crown glass sun lenses?
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    How long do UV coatings last?

    CR-39 sun lenses need a UV coating for full 400nm protection. So do the stock glass lenses of most Ray-Ban sunglasses. Does anyone know how long this coating lasts?
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    Hoya 1.74 coating durability?

    How does it compare to 1.67? I used to see more coating issues with 1.74 after 1-2 years but it seems to be improved now? Is it more durable in plus lenses?
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    Sync 5 has a 0.57 boost. It seems to be closer to...

    Sync 5 has a 0.57 boost. It seems to be closer to 0.75 though, at least that's what I measured in my own pairs.

    The 0.95 and 1.32 boost zones are about 3mm lower compared to the 0.57.
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    Thanks. Fitting height is 24 in a 38 B frame and...

    Thanks. Fitting height is 24 in a 38 B frame and sync 5 has a higher boost zone comparable to short corridor progressives, so it should work out great.

    I have 3 pairs with these lenses, each fit...
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    Does Hoya Sync 5 have an inset?

    I'm sure it has at least some but how much? I'm looking at the fitting chart but it does not show. I have a friend who's a high hyperope and as such he has to converge quite a bit for near through...
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    Well yeah but what about people with really poor...

    Well yeah but what about people with really poor balance who are looking for something to grab with every slow step they take? A regular corridor (14mm) gives them some clearer intermediate vision to...
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    Balance issues and corridor length

    Every now and then I get older clients with very poor balance. They constantly look downwards searching for something to hold on to. I've always avoided short corridors for these people since it...
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    Both clients got their glasses today and they're...

    Both clients got their glasses today and they're very happy. One was even amazed how much better it was than the previous pair.
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    I always ask my clients to sit in a relaxed...

    I always ask my clients to sit in a relaxed position the way they sit in front of the TV. I measure the fitting height in this position then let them stand up and compare. Usually this is about 1mm...
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    Both clients had progressives before with the...

    Both clients had progressives before with the same VD. Surely increasing inclination and lowering the fitting height a bit should improve optics?
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    Very long vertex distances

    Do you do anything different for clients with very long vertex distances? I've had two clients last week with a vertex distance of 20-22mm. They prefer wearing the frame this way so there was no way...
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    No idea but there's something strange going on....

    No idea but there's something strange going on. Patient has some difficulty looking left with the left eye which would indicate left esophoria. Base out prism makes it easier to look left but worsens...
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    Exophoria question

    Schober cross test reveals a combination of exophoria and hyperphoria. Patients tilts chin slightly up and to the left to compensate. I remember learning that with exophoria the head turns towards...
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    I'm curious now. These are marketed as night...

    I'm curious now. These are marketed as night driving lenses, but would they also help people with cataracts in daytime since they reduce glare?
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    Turns out I'm used to looking more to the right...

    Turns out I'm used to looking more to the right because it feels more comfortable without correction. It's a habit I acquired to compensate for my phoria. It's funny I realize this just now because...
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    I've had these for a week now. I'm pretty happy...

    I've had these for a week now. I'm pretty happy but the add portion in the left lens is very narrow, probably because of my base in prism. I had to decenter the left PD 0.5mm, hopefully that didn't...
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    I'm still wondering though: does Blue Control get...

    I'm still wondering though: does Blue Control get dirty more quickly? I'm going to order new lenses tomorrow and I'm thinking 10% rose would be a good alternative.
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    Which ones are Hoya coatings?

    Which ones are Hoya coatings?
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