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...
Type: Posts; User: eyemechs; Keyword(s):
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...
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...
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!)
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...
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...
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?
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?
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
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...
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...
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...
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...
You definitely need a solid foundation in linear algebra in order to just read this thing. Just bought the book myself.
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...
Any updates on findings? Also, would Diamond Finish be the Oceania equivalent of EX3 for Hoya?
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...
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.
This is late to the party, but would you happen to still have that formula or an updated one, MakeOptics?
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...