high power pals?

**Texas Ranger** · 06-10-2003, 01:39 PM

Does anyone produce pals in power ranges about a minus 12D? have several pts who need them, dies anyone know the solutution?

**johntricity** · 06-10-2003, 02:00 PM

Essilor Panamic 1.67 Thin N Lite is available up to -12.00 with up to -4.00 cyl. This is processed in the Nikon/Avisa Lab in Texas and my order manager says they will probally go over -12.00. Also the 1.66 Optima Hyperview can be groung as high as -12.00.

**Lee Prewitt** · 06-10-2003, 04:46 PM

Shamir Genesis 1.67 lists range from -12.25 to +7.00. I think nearly any of the 1.67 progressives will fit this range.

**Jedi** · 06-11-2003, 12:16 PM

TR
Nikon has the Nikon i in a 1.67 and a 1.74, the Go in 1.67 and I believe they are coming out in 1.74. Rodenstock Multigressiv and Life 2 are availible in 1.8 glass up to a -20.

**abbysax** · 07-20-2003, 08:23 PM

Are the lenses that you are discussing for high power, contact lenses?

thanks - Abby, a minus ten

**Texas Ranger** · 07-21-2003, 09:56 AM

abby, no, they're for eyewear rxs requiring multifocals for presbyopes who are also moderately myopic; I believe that falls into your need area; at a -10 CL wearer, do you have a multifocal lens design in your eyeglasses that you wear when not wearing your CL's?

**Jerry Thornhill** · 07-21-2003, 08:33 PM

Opima Hyperveiw can easily be done with success up to a -15.00, that is the extent of what I have done with this lens.

So far on the Genesis 1.67 a -13.00 that was very successful.

There should not be a problem on any of the 1.67 materials.

Jerry

**Susan Henault** · 07-22-2003, 07:46 AM

Jerry:

I recall hearing over the years that you also process high plus power progressive lens rx's as well. Shamir Genesis 1.67 guidelines go up to +7.50 -- but what is the highest you have ever gone on the plus side (with patient success)?

**epiclabs** · 07-22-2003, 12:28 PM

I believe one of the best choices for high minus PALs is Essilor's 1.60 Adaptar. It comes in a low enough base curve and blank thickness is never an issue. It also keeps the cost down compared to using 1.66 products. We've processed this lens to -20 on several occasions without any problems. In 1.66 index, any PAL should work so long as the blank thickness works for the particular frame. We use a lot of Hyperviews for the reason of blank thickness.

**Jerry Thornhill** · 07-22-2003, 09:25 PM

Susan,
So far a +8.50 sph and the lady got 2 pair. She has been very happy.
The one on a Genesis 1.67 that I liked the best was the low plus with a -11.50 cylinder it is working out great. This was my first try doing something like that on a Genesis 1.67.

Jerry

**yzf-r1** · 08-24-2003, 04:27 AM

an alternative option could be to wear spherical contacts to correct a major part of the refractive error, then a low powered multifocal with the right add in the spectacles

**Robert Martellaro** · 08-29-2003, 11:29 AM

Jerry

Seiko just released their Proceed 2 1.67 in a +9.25 base. I ordered one yesterday for a 8.25-.75.

Susan,

We can't go much above +8DS because the back curve would end up plano, or worse yet bi-convex. I have been using the Comfort 1.6 (and now the Panamic) because of it's steep 8.50 (true 8.37) curve. The problem with 1.6 is that it's so damn heavy. Any chance that Shamir is working on a mid index low specific gravity lens in a +.50 to a 9.0 base curve range?

Robert

**Susan Henault** · 09-02-2003, 08:03 PM

Robert,

Shamir is working on some range extensions that include steeper base curves ... I am not sure enough though, to specify in exactly what materials. I will know more after our sales meeting, which is taking place the week of Vision Expo. I'll flag this and make sure to follow up with you when I have more information.

THANKS!!!

**Robert Martellaro** · 09-05-2003, 12:41 PM

Susan,

That sounds like good news. A very flat ( +.50, or even a +1.00) base 1.67 PAL would be welcome as well. I have always thought that the lens companies passed on the fringe curves for purely economic reasons. It seems reasonable to assume that there are manufacturing complexities involved as well.

Regards,

Robert

**BC_boy** · 09-05-2003, 05:47 PM

I find the Zeiss Gradal Top 1.67 works great.. or if you want thinner than go into the glass series, 1.7 or 1.8 index.

**Corey Nicholls** · 09-09-2003, 08:07 AM

Have you enquired about the Rodenstock "Multigressiv", or "Multigressiv ILT"?

If the go that high in power they would be fantastic for the wearer. They are "The bees knees!!!!!"

Only trouble would be turn around time as Rodenstock will only proccess the lenses in Germany and ship out (3 weeks in Oz).

**Jerry Thornhill** · 09-15-2003, 05:14 PM

Robert,
Thanks for the update on the 9.25 Base Proceed ll. I have been aware of it but haven't had a call to use it.

I got an Rx in today that could use the 9 base. But to my disappointment the true curve on this lens is only 7.47 Base.

I am running the Genesis 1.67 at 7.39 True Curve not much difference between a 7.50 Base by Shamir and a 9.25 base by Seiko.

Susan I am doing this in the Genesis 1.67.
Right eye: +9.25 -0.75 x 70
Left eye: +9.00 -0.25 x 75
add ou: 2.50

This will be a lot easier than the Vip Gold 7.00 Base that I did a +8.25 . Do you remember that one?

Jerry

**Susan Henault** · 09-16-2003, 08:50 AM

I remember all right! I just wish that I could see some of the work that you do. Maybe you should do a 'minusboy' and post some photos for us to see! Is anybody else out there interested in seeing some masterful workmanship? :bbg:

**Robert Martellaro** · 09-16-2003, 12:42 PM

Jerry,

I called my lab and you are correct, it's a 7.48 true curve, and I'am mad as hell. I figured the true curve would be a little flatter but a diopter and a quarter? There ought to be a law! He usually warns me when the manufactuers published numbers are off base but this one got past both of us. They arrived yesterday and I'll let you know how it works out. His Rx is

Rt +6.50 +.75
Lt +7.50 +.75 add 2.75

Robert

**Jerry Thornhill** · 09-16-2003, 12:48 PM

Robert,
What they do is list the Base Curve in the Index of the lens. Then when we get it at the lab we get the trure curve information in 1.53 Index.

The first lens that I first noticed this on was the Hyperview by Optima.

Jerry

**Minusboy** · 09-16-2003, 05:32 PM

I am glad that my thread is still being remembered;)

Brian

**Robert Martellaro** · 09-22-2003, 12:23 PM

Jerry Thornhill said:
Robert,
What they do is list the Base Curve in the Index of the lens. Then when we get it at the lab we get the trure curve information in 1.53 Index.

The first lens that I first noticed this on was the Hyperview by Optima.

Jerry

Jerry,

Is there any reason for the ambiguity? I thought that lens curves were referenced to crown glass index. Who is helped by labeling the BC by the actual index of refraction? Or is it just a case of marketing departments working overtime?

I dispensed the Proceed 2 to the client I mentioned previously without complications.

Thanks

Robert

**Jerry Thornhill** · 10-01-2003, 12:23 PM

[QUOTE]Jerry Thornhill said:

Susan I am doing this in the Genesis 1.67.
Right eye: +9.25 -0.75 x 70
Left eye: +9.00 -0.25 x 75
add ou: 2.50

Susan,
I just heard back from the dispenser on this one. Patient extremely pleased with the job. Said it was the best that he had ever had for visual clarity.

Very pleased with the thickness and over all cosmetic appearance.

Jerry

**icmor** · 11-15-2003, 12:35 PM

Before I had lasik surgery, my rx was -11.75. I wore gradal top 1.67 very successfully. Because of the optical center being 6mm
below the fitting cross, I had less distortion when looking
down in the reading area.;)