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Ha. Tell the "optician" to do their own damn job. I know you can't say that. But you should try to politely tell them that you can't, so they stop sending you things like this. Send the frame back...

I honestly didn't think of Nikon as it is not really prevalent in the US. But looking at the Vision Council/OLA identifier they do seem to be a 2 drop. I don't think I have ever seen a Nikon lens...

Maybe somewhere? But I would say unlikely. IOT are all 4 drop, Crossbows look like they are all 4 drop. Zeiss and Seiko are the only ones I know of that are not 4 drop.

In today's world of freeform lenses and private labeling, PAL identifiers are going the way of the dinosaur.

They have been posting on optiboard since 2005, I don't think their user name is relevant anymore. 17 years and they don't know the basics of PALs and lensometry? Give me a break. I live and work in...

What do you mean you don't know where the markings are? They are engraved on the lenses 34mm apart. Almost all PALs use a 4 drop and the DRP is just above the fitting cross. Zeiss uses a 6 drop, and...

That's literally in Barry Santini's backyard.

At this point we should probably change the poll to "should opticians dispense"

I don't think I assumed anything. I even went out of my way to say I don't understand the question. I guess we are just working in dramatically different parts of the optical world. I buy frames and...

If their add was +2.50 5 years ago and is unchanged, I doubt accommodation issues are at play at all here.

This thread is 18 years old so most of it is probably out of date by now.

This would be my experience as well.

I guess I don't understand the original question. Is iD saying they are trying to return an entire frame line for a refund? Because if that's the case, it...

Lenny, the store around the corner from you must have franchises all over. I think there are a few near me! Am I the only one who gets a patient that strays to another store because it's closer,...

Trial frame the full near Rx. If the VA is good in the trial frame the fitting, or lens design, is off. If the VA in the trial frame is not good, the Rx is off. Start with the easiest solution.

...

The inset difference is going to be about .2mm, I don't think that is your problem. I would say unrealistic expectations, lens design, and possible fitting errors, are the culprits. Also that is a...

13 Diopters of base in prism in each eye would mean compensating the PD 4mm out per eye. Depending on the lens power, the prism amount may also need to be compensated.

*edit. I would also take a...

I just looked at 3 different lab price lists for uncuts and Trivex was $5-10 dollars more across the board. For the lenses and labs I use anyway YMMV. To me a price is non-issue.



The only...

IMO Flexon hasn't been good for a loooong time. Flexon/Marchon/VSP= junk. Not only do they break regularly, their main selling point of being ultra-flexable makes them impossible to adjust correctly....

Here is the page before the one you posted.


"After all of these possibilities, what is the most appropriate
way to determine segment inset? Here are some recommendations
for different...

What do the colleagues in your office think?

24/7's reply are the only viable solutions. There are no magic glasses to fix this.

Aluminum density is 2.75 which is similar to glass. ALON is 3.69.

Here is Younger's take on it, which seems to jive with the spectacle optics program. Trilogy trivex.

Sometimes it's just too easy fester.

Sounds like you need a better lab Drk. I'll order them for you and send it to you for a minor markup, the friends and family discount. I would appreciate your reciprocity on any blue-rolls you can...