Search:

Type: Posts; User: eyemechs; Keyword(s):

Search: Search took 0.07 seconds.

  1. Lensmeters that provide iso-astigmatism/iso-mean power plots. Worth it?

    Hi, I'm wondering how many here have the more advanced lensmeters which map out the iso-astigmatism and iso-mean powers of a progressive lens? Has it been worth it in the sense of 'matching' the...
  2. Replies
    3
    Views
    1,221

    Use of biometry in lens design

    Hi OB,

    I'd like to see what you all thought of the current tech of biometric scanning (Zeiss and Rodenstock) that goes into feeding lens design, specifically progressives. Rodenstock has the new...
  3. Replies
    16
    Views
    29,450

    Is the latest copy on Software Informer the same...

    Is the latest copy on Software Informer the same version (v2.9)? Darryl's link no longer works (his work continues to be invaluable to this day!)
  4. Troubleshooting guidance for a potential progressive non-adapt

    Hi all, I'm hoping someone can give me guidance (as I've exhausted my IRL brains trust on this one).

    I have a px, an late 50s investment advisor who sits on his PC all week, goes acrobatic...
  5. Replies
    11
    Views
    2,408

    lensmanmd, I respect your input. It's why I pay a...

    lensmanmd, I respect your input. It's why I pay a subscription to be included in a community who can be critical and correct errors in my knowledge.

    He knows that it shouldn't be as good as his...
  6. Replies
    11
    Views
    2,408

    Fitting is spot on. The insets are: R 2 and L...

    Fitting is spot on.
    The insets are: R 2 and L 3.5. Making the variation 1.5mm. Could that be significant enough?

    And what makes you say that the Rx makes for difficult occasional use?
  7. I think I may have stumbled upon a use case where...

    I think I may have stumbled upon a use case where the 2.0mm is truly consequential. Does anyone else have input regarding drk's thesis?
  8. Replies
    11
    Views
    2,408

    PAL non-adapt and variable insets

    Hi all,

    I'm experiencing a bit of head-scratcher.

    Have a px who presents with:
    OD +1.00/-0.25x67
    OS +1.00/-0.25x92
    Add +2.25
    Distance PDs R 31.5 / L 35.5
    Near PDs R 29.5 / 32
  9. Replies
    47
    Views
    23,444

    I'm 13 years out, but this forum is a treasure...

    I'm 13 years out, but this forum is a treasure trove. I'm facing quite a similar problem with a px's postural idiosyncrasies.

    Has the optics/ophthalmic realm changed it's tenor since B Santini's...
  10. What are some alternatives/options for colour blind px?

    Hi all,

    We have a new patient who presented and is a strong protan.

    After a bit of digging, I could see that Enchroma is the main supplier (US though and we are in Australia). It seems their...
  11. Replies
    7
    Views
    4,967

    Hi all, to latch onto this recent thread which...

    Hi all, to latch onto this recent thread which coincides with a current patient of mine (we're in Australia) who has strong protan. Enchroma is beyond his budget.

    My understanding is that...
  12. It is in English (unsure if they've written in...

    It is in English (unsure if they've written in other languages) and it is quite dense conceptually but also mathematically. They make use of the matrix formalism - hence linear algebra. In terms of...
  13. You definitely need a solid foundation in linear...

    You definitely need a solid foundation in linear algebra in order to just read this thing. Just bought the book myself.
  14. Replies
    4
    Views
    5,426

    Degressives and frame choice

    Hi all,

    How different are the iso-astigmatism plots between degressive and progressives?

    And given that the reference power in degressives is the combined near add - is there more control over...
  15. Thread: Crizal Rock

    by eyemechs
    Replies
    77
    Views
    36,187

    Any updates on findings? Also, would Diamond...

    Any updates on findings? Also, would Diamond Finish be the Oceania equivalent of EX3 for Hoya?
  16. Replies
    55
    Views
    22,207

    So instead of rick-roll, we have blue-roll?...

    So instead of rick-roll, we have blue-roll? Amirite?

    I must say, I didn't expect this sort of trolling from experienced posters (thank you for these unbelievable non-lenticular looking...
  17. Replies
    8
    Views
    6,705

    Hi Drk. I don't know if there is a way to deny or...

    Hi Drk. I don't know if there is a way to deny or confirm to you but certainly not a consumer and will be contributing to the forum where I think I'm worthy of contribution.
  18. Replies
    55
    Views
    22,207

    This is late to the party, but would you happen...

    This is late to the party, but would you happen to still have that formula or an updated one, MakeOptics?
  19. Replies
    8
    Views
    6,705

    Changing designs based on use case

    Hi everyone, first time poster here.

    We have a PAL wearer who splits his time between outdoors (driving, visiting construction sites, etc) and indoors (on PC looking at spreadsheets, etc) quite...
Results 1 to 19 of 20